A box has length, breadth and height of 10 cm, 20 cm and 5 cm respec

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

Options:

A . 100

c m^{2}

B . 200

c m^{2}

C . 300

c m^{2}

D . 400

c m^{2}

Answer: Option C
:
C

Given,
length $(l)$ = 10 cm
breadth (b) = 20 cm
height (h) = 5 cm
Since each side's measurement is different, we can assume it as cuboid.
Lateral surface area of the box (cuboid)
$= 2 h (l + b)$
$= 2 \times 5 \times (10 + 20)$
$= 10 \times 30$
$= 300 c m^{2}$

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