Respostas

2013-12-17T17:45:38-02:00
4) Ângulos OPV
4x=120\newline x= \frac{120}{4}=30

5) Colaterais Internos
5x-20+2x+60=180\newline 7x=180-40\newline x= \frac{140}{7}=20

6) Soma dos ângulos internos do triângulo
x-20+x+80+4x=180\newline 6x=180-60\newline x= \frac{120}{6}=20


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