Respostas

2014-02-17T19:55:18-03:00
Sen30°=x/10
1/2=x/10
2x=10
x=5

cos30°=x/10
2x=10raiz de 3
x=5raiz de 3

Perimetro=10+5+5raiz de 3
Perimetro=15+5raiz de 3


Area=5.5raiz de 3/2
Area=25raiz de 3