Jawabanmu

2014-02-22T18:35:49+07:00
Segitiga abc = segitiga samakaki
jadi <bca = <cab = 63
diperoleh <cba = 54

<oac = 90-63 = 27
segitiga oac = segitiga samakaki
<oac = <aco = 27
jadi <coa = 126
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