Question

numero 19 valendo 10 pontos

Answer 1

A) 85 +35 +x = 180
    120 + x = 180
     x = 60°

B) 60 + 90 + x = 180
    150 + x = 180
     x = 30°

C) 35 + 73 + x = 180
     108 + x = 180
      x = 72°

D) 55 + 90 + x = 180
    145 + x = 180
     x = 35°

Answer 2

19.

a)
85 + x + 35 = 180
x + 120 = 180
x = 180 - 120
x = 60º


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b)

60 + 90 + x = 180
150 + x = 180
x = 180 - 150
x = 30º

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c)

35 + 73 + x = 180
108 + x = 180
x = 180 - 108
x = 72º


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d)

55 + 90 + x = 180
145 + x = 180
x = 180 - 145
x = 35º

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