Question

Calcule x e determine o valor dos ângulos adjacentes A e B:
A) 105° e 75°

B) 70° e 110°

C) 80° e 100°

D) 130° e 50°

Answer 1

4x-30+x+35=180°
5x=180+30-35
5x=180-5
5x=175
X=35

A=4.35-30=110°
B=35+35=70°
Letra B