algebra 1

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if you have a 10ft ladder placd leaning against the wall,and the ladder is 6ft from the wall.how high does the ladder reach on the wall?

  • algebra 1 -

    |\
    | \
    x | \ 10
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    6

    Pythagorean theorem:

    a^2 + b^2 = c^2

    here you are looking for a so..

    a^2 + 6^2 = 10^2

    a^2 + 36 = 100

    100 - 36 = 64

    square root of 64 is 8

    a= 8ft

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