Find the volume, the total surface area and the lateral surface area of a cuboid which is 15 m long, 12 m wide and 4.5 m high.
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Find the volume, the total surface area and the lateral surface area of a cuboid which is 15 m long, 12 m wide and 4.5 m high.

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Solution —

Here, l= 15 m, b = 12 m and h = 4.5 m.

Volume of the cuboid  = (l×b×h) cubic units

 = (15 ×12 ×4.5) m³ 

 = 810 m³.

Total surface area of the cuboid

= 2(lb+ bh+ lh) sq unit

= 2(15 ×12 +12× 4.5 +15 ×4.5) m²

= 603 m²

Lateral surface area of the cuboid

= [2(l+b) × h] sq unit

= [2(15 +12)×4.5] m²

= 243 m²

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