Question

Alguem me ajuda?
y/Sen30º = x/sen120º

Answer 1

sen30° = 1/2
sen120°=sen60°=√3/2

Y/1/2=X/√3/2
Multiplique cruzado
Y.2/1=X.2/√3
2Y=2X/√3
2Y=2X.√3/3
Y=2X√3/6
Y=X√3/3!!!