Question

1) Determine o valor de x nos triângulos.
A)
120°
х
х
B)
X + 10​

Answer 1

Resposta:

a) 120+x+x= 180

120+2x=180

2x=180-120

2x= 60

x= 60/2

x=30

b) x+10=180

x=180-10

x=170