Question

Calcule x e y nos casos abaixo.

Answer 1

a)

$\sin(30) = \frac{y}{6} \\ y = 6 \sin(30) \\ y = 6. \frac{1}{2} \\ y = 3$

$\sin(30) = \frac{x}{10} \\ x = 10 \sin(30) \\ x = 10. \frac{1}{2} \\ x = 5$

b)

$\cos(60) = \frac{y}{6} \\ y = 6 \cos(60) \\ y = 6. \frac{1}{2} \\ y = 3$

$\tan(60) = \frac{x}{y} \\ x = y \tan(60) \\ x =3 \sqrt{3}$