The CSA of a cylinder having its base radius 'r' and height 'h' is given by: Curved surface area (CSA) of cylinder = 2πrh sq.units
circumference = 2πr units
In this example circumference is 50 cm so that means that the radius is: 50 cm/2π
Substituting the values into the formula for CSA, we get the CSA of the cylinder then is:
500 cm2