Question

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Por favor

Answer 1

Resposta:

a)  75 + x = 90

    x = 90 - 75

     x =  15°

b) x + 10 + x = 90

2x = 90 - 10

2x = 80

x = 80 / 2

x = 40 °

c) 140 + x = 180

x = 180 - 140

x = 40°

d)

e) 180 - 50 = 130°

f) 180 - 30 = 150 °

Answer 2

a) 75 + x = 90 = 15 °
b) x + 10 + x = 902x = 90 - 102x = 80x = 80/2 x = 40 °
c) 140 + x = 180x = 180 - 140x = 40 °
e) 180 - 50 = 130 °
f) 180 - 30 = 150 ° x = 90 - 75% 3D