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perbndingn = 5 : 6 : 7
faktor pengali = x
jumlh sudut segitiga = 180
mka :
180 = 5x + 6x + 7x
180 = 18x
x = 10⁰
Bsar sudut 1 = 5 x 10 = 50⁰
Bsar sudut 2 = 6 x 10 = 60⁰
Bsar sudut 3 = 7 x 10 = 70⁰ (sudut terbesar)