Easy# Right Triangle, Sine Function, Ladder Problem, Unknown Hypotenuse

TRIG-WEKBZ7

Santiago was preparing to purchase a new ladder to reach the top of a 30-foot wall. He was looking at a ladder when he noticed this warning label on the ladder:

**CAUTION: Never exceed an angle of elevation of** ${70}^{o}$.

If Santiago purchased the ladder and followed the safety warning, how long must the ladder be to reach to the top of the wall (round up to the next larger foot)?