Question

Calcule x e y. Me ajudem prfv!?

Answer 1

Olá!

Observe que:

$\sin(30) = \frac{x}{6 + 4}$

Daí,

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


E ainda note que:

$\sin(30) = \frac{y}{6}$

e então

$\frac{1}{2} = \frac{y}{6} \\ 2y = 6 \\ y = \frac{6}{2} \\ y = 3$


Logo, x = 5 e y = 3.