Question
GeneralGeneralGeneral

what is curved surface area of cylinder

Verified Answer

The curved surface area of a cylinder is the area covered by its curved outer surface, excluding the top and bottom circular bases.

Formula:
Curved Surface Area (CSA) = 2πrh

Where:

  • r = radius of the base

  • h = height of the cylinder

  • π = 3.14 or 22/7

Example:
If radius = 7 cm and height = 10 cm

CSA = 2 × π × 7 × 10
= 140π cm²
≈ 439.8 cm²

Difference Between CSA and Total Surface Area

Type Includes
Curved Surface Area Only curved part
Total Surface Area Curved part + both circular bases

Applications of Curved Surface Area

  • Measuring labels around containers

  • Designing pipes and tanks

  • Engineering and construction calculations

In conclusion, the curved surface area of a cylinder is the area of its outer curved surface and is calculated using the formula 2πrh.