Respostas

2014-03-06T14:14:25-03:00
Sen 30° = 12/x 》1/2 = 12/x 》x = 24

cos 30° = x/y 》 (raiz 3)/2 = 24/y 》y = 16 raiz 3

sen 30° = z/y 》1/2 = z/(16 raiz 3) 》z = 8 raiz 3
5 3 5