If a cylinder is covered by two hemispheres shaped lid of equal shape, then the total curved surface area of the new object will be?

4πrh+ 2πr2

4πrh-2πr2

2πrh+ 4πr2

2πrh+ 4πr

Curved surface area of cylinder = 2πrh

The curved surface area of hemisphere = 2πr2

Here, we have two hemispheres.

So, total curved surface area = 2πrh + 2(2πr2) = 2πrh + 4πr2