Question

Tolong pake caranya ya ..

Answer 1

<C = 180° - 110° = 70° (Berpelurus)

<A + <B + <C = 180°
x + x + 70° = 180°
2x = 110°
x = 55°

<ABC = <B = x = 55° (B)

Semoga Membantu

Answer 2

Nomer 13
Berlaku
∠ABC + ∠BAC = ∠ACD
⇒ ∠ABC + ∠ABC = 110                    (∠ABC = ∠BAC)
⇒ 2∠ABC = 110
⇒   ∠ABC = 55°

Jawab : B

Nomer 14
∠DBC = 56°

maka
∠BCD = 180 - ∠BDC - ∠DBC
           = 180 - 90 - 56
           = 34°
Jawab : D


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