Question

plz solve all ..now it's urgent​

Answer 1

Step-by-step explanation:

(1) 60°+x = 180°

x=180- 60

x= 120°

(2)135° +x = 180°

x= 180-135

x= 45°

(3)x+x= 180°

2x= 180°

x= 180/2

x= 90°

plz mark it as a brainleist