Math, trigonometry

Question

1. Suppose the angle of elevation of the sun is 30 degree. find the length of the shadow of a 5.5 feet tall person?
2. A 15 feet long ladder is leaning against a vertical wall. if it makes an angle of 63 degree with the ground, how far is its foot from the wall?

Answer 1

1>

5.5/x = tan 30

2>

x/15 = cos 63