College Math II

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Write a complete solution to each problem.
If the length of a rectangle is 3 feet longer than the width and
the diagonal I s 15 feet, then what are the length and width?

I do not understand how to solve this problem. Can someone help me?
Thanks.

  • College Math II -

    12x9

  • College Math II -

    Use the Pythagorean theorem.

    Hypotenuse^2 = sum of squares of other two sides

    Let x = length, then width = x - 3

    15^2 = x^2 + (x-3)^2

    Does this help?

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