Question

Alguém sabe responder?

Answer 1

$\sin(30) = \dfrac{y}{12}$

$y = 12 \sin(30)$

$y = 12( \frac{1}{2} )$

$y = 6$

Answer 2

$\sin(30)=\frac{C.O}{H}\\\\\frac{1}{2}=\frac{y}{12}\\\\y=6$