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प्रश्न
The total surface area of a cuboid with dimension 10 cm × 6 cm × 5 cm is
विकल्प
280 cm2
300 cm2
360 cm2
600 cm2
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उत्तर
280 cm2
Explanation;
Hint:
T.S.A of a cuboid = 2(lb + bh + lh) sq.units
= 2(10 × 6 + 6 × 5 + 10 × 5) cm2
= 2(60 + 30 + 50) cm2
= 2 × 140 cm2
= 280 cm2
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