Question

Bisa bantu saya , cara jawabnya dan jawaban yang benar.. makasih yaa ☺

Answer 1

Sudut Pusat = 2xSudut Keliling
Sudut Pusat = 2 x 50
Sudut Pusat = 100°

ΔBOC = ΔSama Kaki
Jadi, sudut BCO = (180-100) / 2 = 40°

Sudut ACB = 40 + 15 = 55°

Answer 2

∠BOC = 2∠BAC
∠BOC = 2 X 50°
∠BOC = 100°

ΔBOC sama kaki
∠OCB = (180-100)/2 = 40

∠ACB = ∠ACO + ∠OCB = 40 + 15 = 55°