A ladder 25 feet long is leaning against a wall. If the base of the ladder is 7 feet from the wall,

A ladder 25 feet long is leaning against a wall. If the base of the ladder is 7 feet from the wall, how high up the wall does the ladder reach?

We have a right triangle, where the ladder is the hypotenuse, and we want the measurement of one leg.

Set up the pythagorean theorem with these given items using our Pythagorean Theorem Calculator.

We get Side 1 = 24 feet.