Question

calcule o valor de x, em graus.

Answer 1

Boa tarde,

a) x+35=90

x=90-35

x=55°

b) 50+x+20=180

70+x=180

x=180-70

x=110°

c) x+90+42=180

x+132=180

x=180-132

x=48°

d)x+x+15+25=90

2x+40=90

2x=90-40

2x=50

x=50/2

x=25°

Espero ter ajudado =)