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March 27, 2017

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my son has to draw a figure with an area of 63 and a perimeter of 32.how do he go about doing it?

  • math - ,

    what kind of figure?
    circle?, square?, triangle? , rectangle?, ......

  • math - ,

    Area of a rectangle = length times width

    The factors of 63 are:
    3 * 21
    9 * 7

    Perimeter = 2 times length plus 2 times width

    The rectangle can't be 3 by 21 since its perimeter would be 6 + 42

    The dimensions must be 9 by 7.
    (2 * 9) + (2 * 7) = 18 + 14 = 32

    He needs to draw a rectangle that measures 9 by 7.

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