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Using only whole numbers, how can you draw three rectangles with a perimeter of 12 units?

  • Math -

    first recall that perimeter of a rectangle is
    P = 2(L+W)
    L = length
    W = width
    12 = 2(L+W)
    6 = L+W
    now we need to find for positive, nonzero integers whose sum is 6,, the possible values are:
    L=5 and W=1
    L=4 and W=2
    L=3 and W=3 (this is a square but note that square is also a rectangle)

    hope this helps~ :)

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