Question

Brett needed to repair a window that sat 12 feet

high on a house. He has a 15 foot ladder. How far away
must he set the ladder from the base of the house for it
to reach the window exactly?
3 ft
65 ft
© 9 ft D 6 ft

Answer 1

9 feet

Use Pythagorean theorem:
Leg: 12
Hypotenuse: 15

12^2 + x^2 = 15^2
144 + x^2 = 225
x^2 = 81
x = 9