Question

Calcule o valor de x nos triângulos dados?

Alguém Pode me ajudar pfv

Answer 1

Resposta:

4)

a)

7x+3x+180-130=180

10x=130

x=13

b)

90+2x+x=180

3x=90

x=30

c)

30+40+180-2x=180

70-2x=0

2x=70

x=35

d)

120+x+180-3x=180

120-2x=0

x=60

e)x=180-140+180-120=360-260=100

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5)

a)

60+25+(360-x)+15=360

85+360-x+15=360

100-x=0

x=100

b)

75+15+380-x+20=360

100-x=0

x=100