X2 - x - 42 a=? b=? C=? help me
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The perimeter of a rectangle is all sides added up, so length + length + width + width.
L = length
W = width
then the perimeter is L+L+W+W, or 2L + 2W, or 2(L+W).
what's the length? well, is just 2(27).
L = length
W = width
then the perimeter is L+L+W+W, or 2L + 2W, or 2(L+W).
what's the length? well, is just 2(27).