Question

Calcule a medidas dos ângulos abaixo

Answer 1

Explicação passo-a-passo:

1)180=4x+5x-4+3x+2x+2

180=14x-2

182=14x

182/14=x

13=x

4x=52

5x-4=61

3x=39

2x+2=28

2)90=2x+15+3x-25

90=5x-10

100=5x

100/5=x

20=x

2x+15=55

3x-25=35

3)90=2x+4x+3x

90=9x

90/9=x

10=x

2x=20

4x=40

3x=30

4)90=x/3+x/2

90=(2x+3x)/6

90.6=2x+3x

540=5x

540/5=x

108=x

x/3=36

x/2=54

5)180=2x-40+3x-10

180=5x-50

230=5x

230/5=x

46=x

2x-40=52

3x-10=128