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7 February, 21:43

Windows Plus has been hired to clean the windows at a local office building. The window of greatest height is 24 ft. If the apprentice uses a 25 ft ladder, how far from the building is the foot of the ladder?

5 ft.

13 ft.

7 ft.

11 ft.

+5
Answers (1)
  1. 7 February, 21:48
    0
    Using the pythagorean theorem, we can find the length of x, or the length of the foot of the ladder from the building.

    24^2 + x^2 = 25^2

    576 + x^2 = 625

    subtract 576 from both sides

    x^2 = 49

    square root both sides

    x = 7
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