Respostas

2013-11-02T15:57:47-02:00
Sen(60) / 60 = sen(90) / x
√3/2 / 60 = 1 / x 
√3x / 2 = 60
x = 120 / √3
x = 120√3 / 3
x = 40√3

-------------------- > 40√3 metros < ----------------------
1 5 1