zaria52 zaria52

13-02-2021
Mathematics

contestada

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

Respuesta :

angstar4 angstar4

13-02-2021

9 feet

Use Pythagorean theorem:
Leg: 12
Hypotenuse: 15

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

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