Respostas

2014-06-27T13:11:34-03:00
Basta utilizar a lei dos Senos:
 \frac{a}{senÂ} =  \frac{b}{senB}
x/√3/2 = 8/√2/2
x = (8√3/2)/√2/2
x = 8√3/2 * 2/√2
x = 16√3/2√2
x = 16√3/2√2 * 2√2/2√2
x = 32√5/4*2
x = 32√5/8
x = 4√5
11 4 11