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8 June, 18:16

A rectangle's perimeter and its area have the same numerical value. The width of the rectangle is 3 units. What is the length of the rectangle in units?

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Answers (1)
  1. 8 June, 18:21
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    Formula

    2 * (L + W) = L * W

    Given

    W = 3

    Solution

    2 * (L + 3) = 3*L

    2L + 6 = 3L Subtract 2L from both sides

    2L - 2L + 6 = 3L - 2L combine

    6 = L

    Answer: The length is 6 units long.
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