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March 30, 2017

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A 20 foot ladder is leaning aagainst a wall the base of the ladder is 7 feet away from the.wall hkw high up the wall will the ladder reacb

  • Geometry - ,

    If you can imagine it, the figure will look like a right angle triangle. The hypotenuse will the 20 feet. The base will be 7 feet. The height is the unknown.

    a^2 + b^2 = c^2
    7^2 + b^2 = 20^2

    Solve for 'b' and you will get the height of the wall where the ladder reaches.

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