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9 May, 12:02

A person who is 5 feet tall casts a shadow that is 4 feet long. at the same time, a flagpole casts a shadow that is 20 feet long. how tall is the flagpole?

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  1. 9 May, 12:52
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    Use ratio, the flagpole is 25 feet long

    4:5

    20:x

    20/4 = 5

    5*5 = 25 feet long

    or

    4:5

    20:x

    4x = 5*20

    4x = 100

    x = 25
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