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6 April, 16:32

A ladder leans against a 15 foot tall building to form a right angle. the ladder is placed so it is 8 feet from the base of the building. what is the length of the ladder?

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  1. 6 April, 17:24
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    By pythagorus theorem,

    length^2 = 15^2 + 8^2

    length^2 = 225 + 16

    length = sq root of 289

    = 17 feet

    The ladder is 17 feet.
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