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26 June, 13:28

A 12 foot-ladder is resting against a wall. The base of the ladder is 2.5 feet from the base of the wall. How high up the wall will the ladder reach?

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  1. 26 June, 16:18
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    We just learned this. The formula is A squared + B squared = C squared. Plug your numbers into the equation and then square them.
  2. 26 June, 16:55
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    A squared + B squared=C squared

    2.5 squared + B squared (stands for the hieght) = 12 squared

    6.25+B squared=144

    B squared=144-6.25

    B squared=137.75 then get the square root of 137.75

    B=11.7
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