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Question

The edge of a cuboid are 4 cm, 5 cm, 10 cm. What will be surface area of a cuboid ?

A
210 cm2
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B
200 cm2
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C
220 cm2
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D
None of these
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Solution

The correct option is C 220 cm2
2(lb+bh+hl)
(l=4cm,b=5cm,h=10cm)
=2(4×5+5×10+10×4)
=2(20+50+40)
=2(110)=220 cm2

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