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DilermandoFideles123
@DilermandoFideles123
December 2019
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10. Calcule x sabendo que os ângulos são suplementares. 5x - 30° + 2x
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PauloBarros
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10)
Suplementares: soma dos ângulos é igual a 180º.
5x - 30 + 2x = 180
5x + 2x - 30 = 180
7x - 30 = 180
7x = 180 + 30
7x = 210
x = 210/7
x = 30
5x - 30 = 5.30 - 30 = 150 - 30 = 120º
2x = 2.30 = 60º
Resp.: x = 30
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Verified answer
10)Suplementares: soma dos ângulos é igual a 180º.
5x - 30 + 2x = 180
5x + 2x - 30 = 180
7x - 30 = 180
7x = 180 + 30
7x = 210
x = 210/7
x = 30
5x - 30 = 5.30 - 30 = 150 - 30 = 120º
2x = 2.30 = 60º
Resp.: x = 30