Question

please solve the question with explanation​

Answer 1

∆PRO=

the sum of angles of the triangle is 180°

=> x+x+20 = 180°

=> 2x+20 = 180°

=> 2x = 180-20

=> 2x = 160

=> x = 160/2

=> x = 80°

∠POS=The supplementary angle is 180°

∠POS= 180° - 80°

∠POS= 100°

Therefore ∠POS= 100°.

hope it helps you!