Question

alguem me ajuda nessa 24​

Answer 1

A) ○ = 50x2 = 100

360° - 100°

260°

B)3x-10°+x+30°+140° = 360°

3x +x = 360°-140°-30°+10°

4x = 360° -170°+10°

4x = 360° -160°

4x = 200°

x= 200° : 4

x = 50°