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Assuming the figures you give are length and width of a rectangle,

perimeter = 2(L + W)= 2 x(13.5 +12.2) = 2 x 25.7 = 51 .4

area = L x W = 13.5 x 12.2 =164.7

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Q: What is the perimeter and area of 13.5 and 12.2?
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