soal kelas 8 dan 9

Ust. Abdul Fatah, S.Pd. HP. 085732715640

Tugas Online kelas 8 dan 9 SMP Plus Al Fatimah Bojonegoro 21 Agustus – 10 September 2011

TUGAS ONLINE LIBURAN LEBARAN 21 AGUSTUS – 10 SEPTEMBER 2011

SMP PLUS AL FATIMAH BOJONEGORO

KELAS ; VIII dan IX

LEMBAR JAWABAN WAJIB DI KIRIM ONLINE DI www.alfatimah.blogspot.com

Last week Budi's schoolmates went camping. Budi did not join them because the camping was only for .class 2. He is still in class 1. The campsite was in a village near Kaliurang. It was about 10 kms south of Mount Merapi. There was a stream with clean water nearby. And the air was cool and fresh. It was really a good place for camping. All the students of class 2 had to take partin the camping. Only those who were sick could stay at home. Some teachers also took part in the camping activity. The camping activity lasted for two days. The weather was good during the camping. Everybody had their own useful experience. They all enjoyed the camping.

1. What is the most suitable titte for the text above ........

A. Kaliurang Village. B. Budi's Schoolmates.

C. Going Camping. D. Mount Merapi.

2. "Budi did not join them because ....... " (paragraph 1)

The underlined word means ........

A. accompany B. find

C. seek D. follow

3. The main topic of paragraph 2 is .......

A. the campsite. B. the location of the camp.

C. the condition of the camp. D. the weather at the campsite.

4.

Study the pictures and what the people say. Based on the utterances above, the following statements are false, except ......

A. Lisa is a dentist. B. Nani is a shop assistant.

C. Anto is a bank teller. D. Herny is a teacher

5. Shopkeeper : What can I do for you ?

Customer : I want to buy a blouse Shopkeeper : What is the size ? Customer : Large, please

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Shopkeeper : Here is one Customer : Oh no. It is red, I ....... it Shopkeeper : How about blue ? Customer : Yes, I like that much better.

A. don't like B. refuse

C. how much D. which one

6. Audina : Do you sell dolls here ?

Salesman : Yes, Please have a look at them here. (Audina looks at the dolls available) Salesman : Well, ....... do you want ? Audina : That red one, please.

A. How B. What

C. How much D. Which one

7. Mother : Budi, where are you going next weeks ?

Budi : We're going camping Mother : What do you need to bring ? Budi : ....... money, Mother.

A. many B. some

C. a few D. several

8. Arrange these sentences into a good paragraph !

1. A scarf, in the same colour with the skirt was hung around her neck. 2. My sister dressed charmingly for the party. 3. She wore a white blouse and a red skirt. 4. They made her look taller than usual. 5. To complete her appearance, she wore a pair of high-heeled red shoes.

A. 2 - 3 - 1 - 5 - 4 B. 2 - 1 - 3 - 5 - 4

C. 3 - 1 - 5 - 4 - 2 D. 4 - 2 - 3 - 1 - 5

9. We want to see a very small object but we ....... do it because there is no microscope in

the laboratory.

A. can B. cannot

C. may D. may not

10. Benny and Bagyo are having a guessing

Benny : I am think a profession Bagyo : ........ Benny : Yes, Sometimes but the spends most of his time outdoors.

A. were does he works B. does he work indoors

C. does he go to work D. is the working now

11. Shihab : What happened to tree try in front of your house ?

Ghani : Oh, I ....... last Sunday

A. have cut it down B. am cutting it down

C. will cut it down D. cut it down

12. Look at the picture.




Mrs. Suryati needs all of the vegetables above, so she must go to the .......

A. butcher B. drugstore

C. green grocer D. sweet shop

13. Shopkeeper : Can I help you ?

Marini : Yes, I ....... a kilo of sugar. Shopkeeper : Here it is. Is that all ? Marini : Yes. How much ? Shopkeeper : Rp 3.500

A. need B. choose

C. ask D. get

Athletes An athlete is a person who takes part in athletic competitions. An athlete can be a runner, jumper, swimmer, etc. An athlete can be an amateur or a professional, a man or a woman. In certain sports all athletes have to remain amateurs, that is, they take part in any competitions as a hobby, not as a job. They do not receive monetary awards. An athlete usually has a good posture. Helshe is young, energetic and athletic. He/she exercises regularly and has nutritious food. 14. Which athletes get monetary awards ........

A. Amateurs. B. Professionals.

C. Competitors. D. Winners.

15. The first paragraph tells us about .......

A. what an athlete is B. kind of athletics

C. kind of athletes D. an athlete's performance

16. What does an athlete do to keep his/her body fit .......

A. He/She checks up on his/her health regularly. B. He/She exercises regularly and has nutritious food. C. He/She tries to get some rest. D. He/She takes part in several games.

17. "...., they take part in any competition as a hobby, ....." (paragraph 2)

The word 'they' in the sentence above refers to .......

A. sports B. athletes

C. awards D. competitions

18. "In certain games all athletes have to remain amateurs, ......" (paragraph 2)

"Amateurs" means persons who ....... A. are well-paid




B. have remarkable competence C. take part in athletic competitions D. participate in any competition not as a job

19. Journalist : Hi, Rexy. Are you ready for the final game ?

Rexy Mainaki : Of course, I am. Journalist : How are your chances ? Rexy Mainaki : Well, I'll do my best to win the game. From the dialogue above we know that .......

A. Rexy has just won the final game B. Rexy has almost won the game C. Rexy hopes to win the final game D. Rexy has just started the game

20. Mrs. Narto : Oh ! This room is to dark !

Mr Narto : ........ Mrs. Narto : Yes, good idea.

A. Why dont you shut the windows ? B. Let's use the other room C. Can you help me, please? D. Shall we listen to the music?

21. A ........ is a person qualified to treat people's teeth.

A. midwife B. science

C. surgeon D. dentist

Animals are almost extinct if their numbers are getting smaller. It means more animals die and become rare. One of the rare animals is the rhinoceros. A rhinoceros is a large, heavy mammal with a thick skin.The word rhinoceros is derived from Greek words. Rhinos means nose and ceros means horn. Some rhinoceroses have two horn and others have one horn. These horns are not part of the bony structure of the head. They don't have any bony core. They are an outgrowth of the skin. Rhinoceroses are herbivorous. They eat grals and other plants. They live in grassy areas or in jungles. Rhinoceroses spend most of their time in water. They usually live alone, except during the breeding season. One of these rare rhinoceroses is the Javan rhinoceros. The Javan rhinoceros, rhinoceros sondaicus, is comparatively small and slender. It's about 1.7 metres high. Males have a single horn up to 10 inches (25 cm) in length. Females are usually hornless. Formely the Javan rhinoceros lived in Myanmar, Indocina, the Malay Peninsula, Java, and Sumatra. It's now relatively scarce. People hunted them for their horns. We only find Them in Ujungkulon, West Java now. If we don't want Javan rhinoceroses to be extinct, we mult protest them. We must preserve their habitat. The law prohibits those who hunt them. 22. What does the text tell us about ........

A. Rhinoceroses. B. Animals in Indonesia.

C. The thick skin of the rhino. D. The rhinoceros from Java.

23. Where do rhinoceroses spend most of their time ........

A. In grassy areas. B. In water.

C. In jungle D. In forest.

24. Why must we protect certain animals ?

Because .......

A. they only have certain places to live B. they live in the jungles C. they spend most of their time in water D. they are hunted and become rare

25. "We must preserve their habitat." (paragraph 5)




'Preserve' means .......

A. destroy B. save

C. reduce D. experience

26. Tono : I hear a tiger died in the park. Someone killed it.

Tuti : ........

A. That's fun. B. That's wonderful.

C. I am sorry to hear that. D. That's not so bad.

27. Anton : My family is going to Bogor this weekend.

Sri : How will you go there ? Anton : My father will drive us. What will Anton do this weekend ?

A. He plans to visit his family. B. He plans to go to Bogor. C. He plans to drive his own car. D. He plans to invite Sri to go to Bogor.

28. Man : ....... The numbers are 23d and 23 e

Usher : Certainly, sir

A. Could you show us our seats, please ? B. Could you telt me the way to the movie ? C. Do you know how to get the seats ? D. Please tell me the way to the entrance.

29. Most females give birth to babies rather than lay eggs, and feed their young with milk.

What types of animals are they .......

A. Amphibians. B. Insects

C. Mammals. D. Reptiles.

AT THE ZOO One of the popular local tourist resorts in Bandung is the zoo. Many people visit the zoo everyday. There are hundreds or even thousands of visitors at weekends or on holidays. Last holiday, many SMP students went to the zoo. The students visited the zoo with their teachers. They were very happy to look at various animals and some interesting attractions they have never seen before. Some animals are strange to them. These animals are from other countries, such as camels, bears, flamingos, piranhas, and many others. The attractions that made the students happy were sitting elephants, monkeys riding a bike, and bird shows. 30. "They were very happy to look at various animals ...." (paragraph 2)

The word "various" means of ....... types, unlike one another.

A. several B. strange

C. few D. usual

31. The students were happy when they .......

A. heard the story of a flamingo B. sat on the elephants C. looked at animals and attractions D. saw thousands of visitors

32. Which animals can perform things that attract visitors ......

A. All the animals in the zoo B. Animals from foreign countries. C. Camels, bears, flamingos and piranhas. D. Elephants, monkeys, and birds.

33. What does paragraph two tell us about .......

A. Various kinds of animals.




B. Various attractions at the zoo. C. What the students did at the zoo. D. A numbers of animals at the zoo.

34. The students ....... when they visit the zoo.

A. can give a show B. can entertain visitors C. can ride on horseback D. can get information about animals

Dwi went to the hardware store to buy some tools. There he met an Australian, Peter Ross. Dwi asked hiet what he did. Peter said, 'I work on a farm.' "I'e a farmer too," said Dwi. Peter said, "I'm not really a farmer. I work fora farmer. I drive a tractor on the farm.' "What do you do with your tractor ?" asked Dwi. "There are many things that I do with my tractor. I pull a plough to turn the soil many times. Then I change to a seeding machine. I drive a harvester to harvest the wheat.' "How big is your farm, Dwi ?" "It is not very big. My two sons and I manage the farm." "Do you have any tractors ?" "No." Dwi replied. "Our farm is on the slope of a hill. "We cut terraces to hold the water and we plant on the terraces. "We cannot use a tractor on the slope. Everything must be done by hand." "It must be very hard work, planting and harvesting" said Peter. "I agree," answered Dwi. "I'm certain I can't work like that," Peter added. 35. What is the main topic Dwi and feter are talking about .......

A. Their farms. B. Their farming work.

C. Their farming problems. D. Their farming tools.

36. Which activity doesn't Peter usually do .......

A. Cutting terraces. B. Driving a tractor.

C. Harvesting the wheat D. Turning the soil many times.

37. "I'm certain I can't work like that," Peter added. (the last line)

The meaning of the underlined word is .......

A. sure B. sorry

C. confused D. curious

38. Salesman : Which rug do you want ?

Mrs. Jeane : This red one. Salesman : All right. What ....... do you need ? Mrs. Jeane : That's all.

A. again B. else

C. addition D. other

Every four gears the tiest sportsmen and sportswomen in the world gather for a very big sport meeting. They compete against one another for Olympic medals: gold, silver, and bronze - that are given to the winners in each event. The games are held in a different country each time. Do you know when the first Olympic Games were held ? Nearly three thousand years ago, all the tiest athletes in Greece took part in a 200-metre race at Olympia. The winner of that race became the Olympic champion and was given a branch of olive teaves that he wore as a crown. The race was held every four gears. Lather on more events were held, for example, wrestling, boxing, topg jump, throwing the javelin and discus, and even chariot racing. The games lasted for several dags. The last Olympic Games were held in Atlanta in 1996. Indonesia got one gold medals, one silver medals and one bronze medals in badminton. Ricky and Rexy won the gold medals




in mens doubles, Susi Susanti won the bronze medal in women's single and Mia Audina won the silver medal in women's singles. The coming Olympic Games will tie held in Sydney. Indonesia will take part in the games and will try to win more medals. 39. What does the second paragraph telt us about ?

It telts us about .......

A. the first Olympic Games B. the Olympic melals

C. the competing athletes D. the Olympic champions

40. Which of the following statements is not true according to the text .......

A. The Olympic Games are held every four years. B. Indonesia won't take part in the coming Olympic Games. C. Ricky and Rexy got one medal in the 1996 Olympic Games. D. The first Olympic Games champion got a branch of olive leaves.

41. '...... that are given to the winners in each event.' (paragraph 1)

The underlined word means .... in the Olympic Games.

A. competition B. medal

C. crown D. athlete

42. ".... and was given a branch of olive leaves that he wore as a crown." (paragraph 2)

The word "he" in the sentence above refers to .......

A. the sportsman B. the winner

C. the runner D. the spectator

43. Ardi and his friend are planping their tour.

Ardi : Well, what about the bus ? Widyo : Don't worry. There will be a lot of buses to rent. Herma : ......, because it's a public holiday. Jihan : That' right. We have to order the bus soon.

A. How many will there be B. It's going to be OK

C. Everything will be a problem D. I am a little doubtful that

Human beings have lived on earth for tens of thousands of years, and during most of that time their numbers were small. Before agriculture was developed about 10,000 years ago, the death rate was high partly because of a limited food supply But after people began to grow crops and raise animals for food, the death rate fell. And the population of the world slowly grew. The population of the world is not spread evenly over the earth. The average number of people who live in an area or territory is called the population density. The most crowded continents are Asia and Europe. Cities are more densely populated than rural areas. Food and population cannot be separated. An adequate supply of food is one of the human needs. Overcrowding has a bad effect on life. A main cause of fanvine today is drought - a long period without rainfall. Crops wither and die, and animals strave. Drought is almost impossible to control. In recent years, famine has occurred in several african countries, including some in north eastern Africa. More governments are helping families to understand the problems of population density They give "family planning" advice to families that request it. Such families can plan to have the number of children they want. 44. The text tell us about .......

A. the world population B. population density

C. family planning D. the world's continents

45. Why was the death rate high ?

Because ...... was limited.

A. the population density B. population density

C. the food supply D. illness




46. From the text we know that famine in several African countries is caused by .......

A. war B. drought

C. over crowding D. population density

47. "They give family planning advice to families that request it." (paragraph 5)

The word "They" refers to .......

A. the govemments B. the countries

C. the hungry people D. the rural areas

48. Aisyah : Where did you spend your holiday ?

Paula : In Bali. Aisyah : Really ? You had a nice holiday, ........ Paula : Of course.

A. had you ? B. did you ?

C. didn't you ? D. don't you ?

There are two main types of plants, flowering plants and non-flowering plants. Flowering plants have roots, stems, leaves, flowers and fruits.Almost all the trees around us are flowering plants.You ran probably recognize some plants from their flowers or their fruits. Non-flowering plants cannot grow flowers. They include the fem, fungi and algae. You cannot see many non-flowering plants around you. Roots grow down into the soil, often branching again and again. The roots are covered with tiny kars, which take in water and minerals from the soil. The stem grows upward from the root. Part or all of the stem may be underground. A stem may trail along the ground, climb a post, or groav straight up in the air. Leaves produce food, in the form of sugar, for the entire plant. The leaves contains a pecial green substance that enables them to do this. This substance is chlorophyll. Chlorophyll ran produce sugar only in the presence of light. Carbon dioxide, which is a gas in the air, is also needed. So is water from the soil. 49. You can probably know the difference between plants from their ......

A. roots B. fruits

C. skins D. fungi

50. Which one of the following is not needed by the tree to produce sugar .......

A. Flower B. Light

C. Chlorophyll D. Carbon dioxide

51. Which paragraph telts us about the roots of plants .......

A. Paragraph 1 B. Paragraph 2

C. Paragraph 3 D. Paragraph 4

52. ".... which take in water and minerals from the soil.' (paragraph 3)

The underlined words mean .......

A. produce B. absorb

C. need D. provide

53. ".... that enables them to do this." (paragraph 5)

The word "this" in the sentence above refers to ......

A. the food production B. the green substance

C. the entire plant D. the leaf content

54. My sister works at the Garuda Indonesian Airways as ......, serving the passengers.

A. a pilot B. a co-pilot

C. an engineer D. an air-hostess

55. Editors and ropy readers read the stories, look at news pictures and cartoons, and write

headlines. They decide what should go into the newspaper. The underlined word means .......




A. letters for readers B. opinions on particular topics C. the titles newspaper stories D. public announcements in the newspaper

56. Bacaan untuk soal nomor 56 sampai dengan 58

The writing under the heading 'TOTO MEMI' is taken from a .......

A. newspaper B. magazine

C. Book D. leaflet

57. Which is not mentioned in the fist of topies included in Wawasan .......

A. World news B. National topies

C. Regional topies D. Exclusive news

58. Paragraph 1 tells us about ...... of the dally.

A. the reporters B. the publishers

C. the readers D. the editors

59. Faisal : Please tell me how to me this new plant grow well.

Habib : Oh, I am sorry ....... Faisal : That's all right.

A. I have no idea B. I am sure it will do well C. I know how to deal with it D. Don't worry. It's easy to do it

60. Erna adn Winarti are a nature reserve.

Erna : Do you hear somethings around here ? Winarti : Yes. What is it anyway ? Erna : ...... It must be the sound of a snake.

A. Teriffic ! B. Now way !

C. Excuse me ! D. Watch out !

1. Notasi pembentuk himpunan dari B = {1, 4, 9} adalah ........

A. B = {x | x kuadrat tiga bilangan asli yang pertama} B. B = {x | x bilangan tersusun yang kurang dari 10} C. B = {x | x kelipatan bilangan 2 dan 3 yang pertama} D. B = {x | x faktor dari bilangan 36 yang kurang dari 10}

2. Jadwal latihan tiga tim bola voli untuk bermain di lapangan yang sama adalah tim

pertama latihan 4 hari sekali, tim kedua latihan 5 hari sekali, dan tim ketiga 6 hari sekali. Jika tanggal 1 Desember 2000 ketiga tim mengadakan latihan bersama, maka mereka akan latihan bersama lagi pada tanggal ....

A. 28 Januari 2001 C. 30 Januari 2001




B. 29 Januari 2001 D. 31 Januari 2001

3. Selisih dari 7,2 dan 3,582 adalah ........

A. 3,618 B. 3,628

C. 3,682 D. 3,728

4. Dari 44 siswa dalam kelas, terdapat 30 siswa gemar pelajaran matematika dan 26 siswa

gemar pelajaran fisika. Jika 3 siswa tidak gemar kedua pelajaran tersebut, maka banyaknya siswa yang gemar dengan kedua pelajaran itu adalah ........

A. 12 siswa B. 15 siswa

C. 18 siswa D. 22 siswa

5.

Dari gambar kubus di atas. Bidang diagonal yang tegak lurus dengan bidang diagonal ADGF adalah ........

A. ABGH B. BCHE

C. CDEF D. ACGE

6.

Diketahui besar sudut B = sudut siku-siku, sehingga besar sudut B = ........°

A. 25 B.

35

C.

37 D.

41

7. Perhatikan gambar di bawah ini !

Diketahui persegi ABCD dan persegi panjang PQRS. Jika keliling persegi panjang sama dengan dua kali keliling persegi, maka panjang sisi persegi adalah ........

A. 12 cm B. 9 cm

C. 8 cm D. 6 cm




8.

Perhatikan gambar segitiga ABC di atas. Panjang AD adalah ........

A. 8,8 cm B. 9,6 cm

C. 15,0 cm D. 16,0 cm

9. Diketahui P = {p, q} dan Q = {r, s, t, u). Himpunan pasangan berurutan di bawah ini

yang merupakan pemetaan dari P ke Q adalah ........

A. {(p, u), (q,u)} B. {(p,r),(p,s),(q,t),(q,u)} C. {(p,q),(q,r),(r,s),(s,t),(t,u)} D. {(p,r),(p,s),(p,t),(p,u),(q,r),(q;s),(q,t),(q,u)}

10.

Diketahui AC = 15 cm, EC = 5 cm, AD = 6 cm, dan BC = 3 cm. Panjang AB adalah ........

A.

B.

C.

D.

11.

Diketahui sudut A2 = 108°, sudut B1 = 4p. Nilai p adalah ........

A. 27° B. 18°

C. 16° D. 12°





Diketahui AGJK trapesium samakaki, HD = DI, ABC = CDE = EFG = sama kaki. AG = 48 m, AB = 10 m dan AK = 12 m. Luas daerah yang berwarna biru adalah ........

A. 318 m² B. 336 m²

C. 354 m² D. 372 m²

13. Andri menyewa mobil selama 5 hari dengan tarif Rp 1.237.500,00. Bila Andri hanya

menyewa selama 3 hari, maka Andri harus membayar sebesar ....

A. Rp 697.500,00 B. Rp 712.500,00

C. Rp 727.500,00 D. Rp 742.500,00


Notasi pembentuk himpunan untuk titik-titik P yang berada di daerah arsiran berwarna merah adalah ........

A. {(x, y) | x -4 dan x - 3y 5, x, y R} {P | OP 5} B. {(x, y) | x -4 dan x - 3y 5, x, y R} {P | OP 5} C. {(x, y) | x -3 dan x - 3y 5, x, y R} {P | OP 5} D. {(x, y) | x -3 dan x - 3y 5, x, y R} {P | OP 5}

15. Gradien garis yang mempunyai persamaan 7x - 4y + 9 = 0 adalah ........

A.

B.

C.

D.

16. Diketahui 3x + 4y = 7 dan -2x + 3y = -16.

Nilai 2x - 7y adalah ........

A. -24 B. -4

C. 4 D. 24





Garis lengkung yang tampak pada gambar merupakan busur lingkaran. Jika = , luas bangun itu adalah ........

A. 1.827 cm² B. 3.150 cm²

C. 3.213 cm² D. 4.536 cm²

18. Beberapa pohon mawar ditanam di sekeliling sebuah taman berbentuk lingkaran.

Diameter taman itu 63 meter dan jarak antara dua pohon mawar yang berdekatan

adalah 3 meter. Jika = , maka banyak pohon mawar di sekeliling taman itu adalah ........

A. 67 batang B. 66 batang

C. 65 batang D. 34 batang

19.

Diagram di atas memperlihatkan distribusi pilihan siswa dalam kegiatan ekstrakurikuler. Diketahui banyaknya siswa adalah 480 orang. Perbandingan banyak pemilih kerajinan ukir dan tari adalah ........

A. 3 : 5 B. 4 : 5

C. 3 : 10 D. 2 : 5

20.

Sketsa gambar di atas adalah sebuah tenda pramuka berbentuk prisma. Bila luas alas tenda 10 m² dengan lebar 2 m dan tinggi 3 m. Berapa volum ruang tenda tersebut ........

A. 60 m³ B. 40 m³

C. 30 m³ D. 15 m³

21. Keliling alas sebuah kubus 20 cm. Luas permukaan kubus tersebut adalah ........

A. 150 cm² B. 200 cm²

C. 400 cm² D. 500 cm²




22. Seorang pekerja membuat sebuah bak berbentuk balok dengan luas sisi atas dan sisi

depan masing-masing 50 m² dan 30 m². Jika rusuk yang membatasi sisi alas dan sisi depan panjangnya 10 m, maka volum bak yang terjadi adalah ........

A. 150 cm³ B. 120 cm³

C. 80 cm³ D. 60 cm³

23. Koordinat bayangan titik Q (2, 4) oleh rotasi yang berpusat di O sejauh 90° adalah

........

A. (-2, -4) B. (-4, 2)

C. (4, -2) D. (2, 4)

24. Sebuah persegi panjang PQRS dengan P(3, 4), Q(3, -4), dan R(-2, -4) didilatasi dengan

pusat O(0,0) dan faktor skala 3. Luas persegi panjang setelah dilatasi adalah ........

A. 40 satuan luas B. 120 satuan luas

C. 240 satuan luas D. 360 satuan luas

25.

Pada gambar di atas, ABCD sebangun dengan PQRS. AB = 27 cm, CD = 6 cm, AD = 12 cm, PQ = 9 cm, dan QR = 4 cm. Panjang SR adalah ........

A. 5 cm B. 4 cm

C. 3 cm D. 2 cm

26. Pada pukul 09.00 bayangan tiang bendera yang tingginya 5 m adalah 8 m. Pada saat

yang sama sebuah pohon mempunyai bayangan 20 m. Tinggi pohon tersebut adalah ........

A. 10 m B. 12,5 m

C. 14,4 m D. 32 m

27. Besar setiap sudut segi-20 beraturan adalah ........

A. 18° B. 81°

C. 99° D. 162°

28.

Pada segiempat tali busur PQRS di atas, diketahui P = 83° dan Q = 27°.

Besar S adalah ........

A. 153° B. 113°

C. 97° D. 63°




29.

Perhatikan gambar di atas !

Besar ADE = 70° dan besar busur BD = 56°. Besar ACE adalah ........

A. 14° B. 42°

C. 84° D. 126°

30. Diketahui dua buah lingkaran dengan pusat di A dan B, masing-masing berjari-jari 34

cm dan 10 cm. Garis CD merupakan garis singgung persekutuan luar. Bila garis CD = 32 cm, panjang AB adalah ........

A. 66 cm B. 44 cm

C. 42 cm D. 40 cm

31.

Pada gambar di atas diketahui AB = 28 cm dan BC = 21 cm. Panjang jari-jari lingkaran O adalah ........

A. 35 cm B. 25 cm

C. 17,5 cm D. 12,5 cm

32.

Hasil dari adalah ........

A.

B.

C.

D.

33.

Daerah hasil pada diagram panah di atas adalah ........

A. {a, b, c, d} B. {1, 2, 3, 4}

C. {a, b, c} D. {1, 2, 3}

34. Keliling persegi panjang 48 cm. Berapakah panjang diagonal persegi panjang tersebut

sehingga luas persegi panjang maksimum?

A. 24 cm B. 22 cm

C. 12 cm D. 12 cm




35. Diketahui x1 dan x2 adalah penyelesaian dari persamaan 6x² + 7x - 20 = 0.

Bila x1 < x2, maka nilai dari 4x1 + 3x2 adalah ........

A. 4 B. 6

C. -4 D. -6

36. (a + b)5 = a5 + pa4b + qa3b2 + ra2b3 + sab4 + b5.

Nilai 5p - 4 q = ........

A. -30 B. -15

C. 65 D. 70

37. Suku ke-n dari barisan 1, 3, 5, 10, 15, 21, ... adalah ........

A. n(n + 1) B.

C. n(n + 2) D.

38. Selembar kertas dipotong menjadi 2 bagian, setiap bagian dipotong lagi menjadi 2, dan

seterusnya. Jumlah potongan kertas setelah potongan yang kelima sama dengan ........

A. 12 bagian B. 16 bagian

C. 32 bagian D. 36 bagian

39.

Gambar di atas menunjukkan sketsa seseorang melihat puncak menara R dari titik P dan titikQ. Sudut elevasi puncak menara terhadap mata pengamat di titik P adalah 30° dan jarak PQ = 100 m. Berapakah tinggi menara (OR) ?

(sin 30° = , cos 30° = , dan tan 30° = )

A. 25 B. 33

C. 50 D. 100

40. Diketahui 2log 3 = x, dan 2log 4 = y.

Nilai 2log 36 adalah ........

A. 2x + y B. x + 2y

C. 2xy D. x²y


soal kelas 8 dan 9

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