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7 July, 21:38

Two window washers, ian and caleb, lean a ladder against the side of a building so that Ian can wash a window while Caleb holds the ladder. The top of the ladder reaches the window, which is 15 feet off the ground. the base of the ladder is 8 feet away from the building. How long is the ladder?

A. 18 feet

B. 16 feet

C. 17 feet

D. 15 feet

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  1. 7 July, 22:11
    0
    C. 17 feet

    Step-by-step explanation:

    This problem allows us to use the Pythagorean theorem to solve. We are give both legs or a right triangle. One leg is the height of the window = 15ft and the other is the distance away from the building = 8ft. We are trying to find the length of the ladder, which will be the hypotenuse.

    a^2 + b^2 = c^2 where a and b are the lengths of the legs and c is the hypotenuse

    8^2+15^2 = c^2

    64+225 = c^2

    289 = c^2

    Take the square root of each side

    sqrt (289) = sqrt (c^2)

    17 = c
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