A box has length, breadth, and height of 10 cm, 20 cm, and 5 cm respectively. The lateral surface area of the box is:

100 cm²

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200 cm²

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300 cm²

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400 cm²

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Solution

The correct option is C
300 cm²

Given that l = 10 cm, b = 20 cm, and h = 5 cm

We know that, lateral surface area of cuboid = 2h(l + b)
$= 2 \times 5 (10 + 20)$
$= 300 c m^{2}$

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