Question

Determinar x e y na figura representada abaixo dado Seno 30°=1/2

Answer 1

Resposta:

$\sin(30) = \frac{x}{8} \\ \frac{1}{2} = \frac{x}{8} \\ \frac{1}{2} \times 8 = x \\ x = 4$

$\cos(30) = \frac{y}{8} \\ \frac{ \sqrt{3} }{2} = \frac{y}{8} \\ \frac{ \sqrt{3} }{2} \times 8 = y \\ y = 4 \sqrt{3}$