jawaban
Post on 06-Aug-2015
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Jawaban : Dik: segitiga a
a = x cm
b = 2x cm
c = 9 cm
K = 30 cm
Dit:
Berapa nilai x?
Jawab:
K= a + b + c
30 = x + 2x + 9
30 = 3x + 9
30 – 9 = 3x
21 = 3x
7 = x
Dik: segitiga b
a = 12cm
b = 2p cm
c = 3p cm
K = 52 cm
Dit:
Berapa nilai p?
Jawab:
K = a + b + c
52 = 12 + 2p + 3p
52 = 12 + 5p
52 – 12 = 5p
40 = 5p
8 =p
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