Geometry

The foot of a ladder is placed 6 feet from a wall. If the top of the ladder is 8 feet up on the wall, how long is the ladder?

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  1. Think about the Pythagorean theorem. The ladder length is the hypotenuse.

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  2. Okay.. whats the Pythagorean theorem again?

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  3. a^2 + b^2 = c^2
    c is the hypotenuse and a and b are the perpendicular sides of a right triangle

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  4. Okay i think i got it.
    a^2 + b^2 = c^2
    6^2 + 8^2 = c^2
    36 + 64 = c^2
    sqrt of 100 = sqrt of c^2
    10ft = C

    Is that right?

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  5. yep

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