The surface area of cuboid-shaped box having length = 80 cm, breadth = 40cm and height = 20cm is:

11200 sq.cm

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13000 sq.cm

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13400 sq.cm

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12000 sq.cm

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Solution

The correct option is A 11200 sq.cm
Explanation : Surface area of the box = 2(lb+bh+hl)
S.A. = $2 [(80 \times 40) + (40 \times 20) + (20 \times 80)] = 2 [3200 + 800 + 1600] = 2 \times 5600 = 11200 s q . c m .$

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