Awomen has a ladder that is 13 ft long. if she sets the base of the ladder on level ground 5ft from the side of a house, how many feet above the ground will the top of the ladder be when it rests against the houlad

It is convenient to remember that 5-12-13 is a Pythagorean triple.

Her ladder is 12 ft above the ground where it rests on the house.


Using the Pythagorean theorem, you are given the hypotenuse as 13 ft and one leg as 5 ft. Then the other leg is
.. √(13^2 -5^2) = √(169 -25) = √144 = 12