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algebra

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10 ft ladder leans against wall its foot braced 3 ft from wall's base. how far up the wall does the ladder reach? please walk me through it

  • algebra -

    you know a right triangle the hypotensue squared is equal at the sum of the square of the legs.

    100^2=3^2+H^2
    h^2=91
    h= sqrt (91)

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