Respostas

2014-07-11T14:13:55-03:00
Sen30 = 13/y
1/2 = 13/y
y = 2.13
y = 26

tg60 = 13/x
√3/1 = 13/x
x√3 = 13
x = 13/√3
x= 13√3/3
1 5 1