Question

Se AP e BP são Bissetrizes determine.

C, que excede D em 10 graus.

gabarito=125​

Answer 1

360° = D + (D+10) + 2 γ + 2 β

γ + β = 60°

2.( γ + β) = 2. 60°

2 γ + 2 β = 120°

360° = D + (D+10) + 120°

360° -130° = 2D

230° = 2D

115° = D

C = D + 10°

C = 115° +10°

C = 125°

easy

Answer 2

360° = D + (D+10) + 2 γ + 2 β

γ + β = 60°

2.( γ + β) = 2. 60°

2 γ + 2 β = 120°

360° = D + (D+10) + 120°

360° -130° = 2D

230° = 2D

115° = D

C = D + 10°

C = 115° +10°

C = 125°