A painting 40 cm long and 28 cm wide is painted on a cardboard such that they there is a margin of 2 cm along each of its sides find the total area of the margin
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Answer:
Area of painting= 40×28= 1120cmsq.
Area of card board= (40+2) × (28+2) = 42×30=1260cmsq.
So, area of margin= 1260-1120(sqcm) = 60cmsq...
Good Luck
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