Question

Conta de Trigonometria
Obrigado.

Answer 1

cos 45 = x / 20√2 
√2/2 = x /20√2
x =20
sen 45 = y/20√2
√2/2 = y/20√2
y = 20

cos 30 = y/9√3
√3/2 = 9√3/y
y = 18
sen 30 = x / 18
1/2 = x / 18
x = 9