pre- ap pre calculus law of sines question below please help im so confused

Question

If a pole has one 62-foot guy wire that makes an angle of 39 with the ground, and a second 50- foot guy wire is available for the opposite side of the pole, what angle measure will the second wire make with the ground?

Answer 1

Make a picture in which the vertical pole is the altitude of the triangle formed by the 2 guy wires.

Let h = the height of the attachment point of the wires.

then you will see that h=62 sin 39 = 50 sin x.