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

TRIG-WRXK@P

Santiago was preparing to purchase a new ladder. He was looking at a **$\text{ 25 foot}$** 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 far up a wall would the ladder reach (round to the nearest tenth of a foot)?