Sabendo que ap e bp são bissetrizes, determine x:

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