Question

calcule e encontre os valores de x e y

Answer 1

sen60° = cat.op./hip.
√3/2 = 12/y
√3y = 24
y = 24/√3.√3/√3 = 24√3/3 = 8√3

(8√3)² = x² + 12²
64.3 = x² + 144
192 = x² + 144
x² = 48
x = √48 = 2√12