Question

Cine ma poate ajuta??? ​

Answer 1

a) x+58°=180°

x=180°-58°=122°

b) 6x+2x=180°

8x=180°

x=180°/8=45°/2=22°30'

c) 3x+6x+20°=180°

9x=180°-20°=160°

x=160°/9

d) 2x+5x-30°=180°

7x=180°+30°

7x=210°

x=30°