Question

find the shadow cast by a 10 foot lamp post when the angle of elevation of the sun is 58 degrees. find the length to the nearest tenth of a foot.

Answer 1

If you looks at the well drawn picture that I drew, you'll notice that we notice that we can use the trigonometric ratio tan; in this case:

tan58=$\frac{10}{x}$
Solving this, we get:
x=$\frac{10}{tan58}$
Which gets us that x=6.25 (approximately)

(It really wasn't that great of a picture but still :D)

:)