Question

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

Answer 1

Hiii!!!

here's ur answer...

given:-

length of the cuboid = 15m

breadth of the cuboid = 6m

height of the cuboid = 5dm

we know that 10dm = 1m

therefore 5dm = 5/10

= 0.5m

→ volume of the cuboid = l×b×h

= 15×6×0.5

= 45m³

→ CSA of the cuboid = 2h(l+b)

= 2×0.5(15+6)

= 1×21

= 21m²

→ TSA of the cuboid = 2(lb+bh+lh)

= 2[(15×6)+(6×0.5)+(15×0.5)]

= 2(90+3+7.5)

= 2×100.5

= 201m²

hope this helps...!

Answer 2

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★L = 15m

★B = 12m

★H = 4.5m

★Volume of cuboid = L × B × H

= (15 × 12 × 4.5)

= 810m^3

★Total surface area of cuboid = 2(LB + BH + HL)

= 2(15 × 12 + 12 × 4.5 + 15 × 4.5)

= 603m^2

★Lateral Surface area of Cuboid = 2(L + B)H

= 2(15 + 12)4.5

= 243m^2