What is lateral surface area

Hi Vasu,

For caclulations, Lateral Surface Area means curved surface area. It's called lateral surface area for cube and cuboid and curved surface area for cylinder, cone and hemisphere.

The formulae are

Cube

Lateral Surface Area = 4a²

Total Surface Area = 6a²

Volume = a³

Cuboid

Lateral Surface Area = 2(lh + bh) = 2 (l + b) h

Total Surface Area = 2(lb + bh + lh)

Volume = l x b x h

Cylinder

Curved Surface Area = 2πrh

Total Surface Area = 2πrh + πr² + πr² = 2πrh + 2πr² = 2πr(r + h)

Volume = πr²h

Cone

Curved Surface Area = πrl

Total Surface Area = πrl + πr² = πr(r + l)

Volume = 1/3 πr²h

Hemisphere

Curved Surface Area = 2πr²

Total Surface Area = 2πr² + πr² = 3πr²

Volume = 2/3 πr³

Sphere

Surface Area = 4πr²

Volume = 4/3 πr³