Jawabanmu

2014-02-27T19:24:51+07:00
C = 2A
B = 3/2 A
A + 2A + 3/2 A = 180
9/2 A = 180
A = 2/9 X 180
A = 40 DERAJAT
C = 80 DERAJAT
B = 60 DERAJAT


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sama sama, selamat belajar