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28 November, 19:48

A painter places an 8.5 ft ladder against a wall. the bottom of the ladder is 4 ft from the base of the wall. how high up the wall does the ladder reach?

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  1. 28 November, 20:15
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    Use the Pythagorean Theorem:

    a² + b² = c²

    4² + b² = 8.5²

    16 + b² = 72.25

    b² = 56.25

    b = 7.5

    The ladder reaches a height of 7.5 ft on the wall
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