a painting 40cm long and 28cm wide is painted on a cardboard such that there is a margin of 2cm along each of its own sides. find the total area of the margin.
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42 × 30 = 1260 cm^2 . Hope its help u...
12abhi:
no its wrong
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Total area is
28+2*40
30*40
1200
28+2*40
30*40
1200
ans is 288
288 m square
Your question wrong
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