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प्रश्न
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उत्तर
Length of the cuboid, l = 2.5 cm
Breadth of the cuboid, b = 2 m
Height of the cuboid, h = 2.4 m
The total surface area of the cuboid
= 2(l × b + b × h + l × h)
= 2(2.5 × 2 + 2 × 2.4 + 2.5 × 2.4)
= 2(5 + 4.8 + 6)
= 2 × 15.8
= 31.6 sq.m.
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