Question

Cacule a medida dos ângulos

Answer 1

Resposta:

Explicação passo-a-passo:

c) 3x+2x=180

5x=180

x=$\frac{180}{5}$  x=36

3.36=108°     2.36=72°

d) 3x+8=x+50

2x=42

x=$\frac{42}{2}$  x=21

3.21+8=63+8=71º       21+50=71º

e)3x+20+2x-30=180

5x-10=180

5x=190

x=$\frac{190}{5}$  x=38°

3.38+20=114+20=134°       2.38-30=76-30=46°

f)3x+5+2x+50=180

5x+55=180

5x=125

x=$\frac{125}{5}$   x=25°

3.25+5=75+5=80°

2.25+50=50+50=100°