a painting 40 cm long and 28 cm wide is painted on a cardboard such that there is a margin of 2 cm along each of its sides find the total area of the margin
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Add 40 cm with 4 since 2+2=4
Similarly add 28 with 4
You get 44 and 32..Multiply both of them..You get 1408
Similarly add 28 with 4
You get 44 and 32..Multiply both of them..You get 1408
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