If a cuboidal box has height, length and width as 20 cm, 15 cm an… - Vidyadip

MCQ

If a cuboidal box has height, length and width as $20 \mathrm{cm}, 15 \mathrm{cm}$ and $10 \mathrm{cm}$ respectively. Then its total surface area is:

A
$1100 \mathrm{cm}^{2}$
B
$1200 \mathrm{cm}^{2}$
✓
$1300 \mathrm{cm}^{2}$
D
$1400 \mathrm{cm}^{2}$

✓

Answer

Correct option: C.

$1300 \mathrm{cm}^{2}$

c
Total surface area $=2(20 \times 15+20 \times 10+10 \times 15)$
$\mathrm{TSA}=2(300+200+150)=1300 \mathrm{cm}^{2}$

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