Posted by Michelle on Tuesday, March 29, 2011 at 11:52pm.
Using only whole numbers, how can you draw three rectangles with a perimeter of 12 units?

Math  Jai, Wednesday, March 30, 2011 at 2:16am
first recall that perimeter of a rectangle is
P = 2(L+W)
where
L = length
W = width
substituting,
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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