Question

Diameter of a Cylinder is 2r cm and its height is h cm then its curved surface area

will be ………………… cm².

a) 4πr 2

b) 2 πrh c) 4 πrh d) πr 2​

Answer 1

Answer:

2πrh

Step-by-step explanation:

diameter is 2r then radius is r

so Curved surface area ia perimeter of base ×height

so 2πrh

Answer 2

Answer:

$2\pi \: rh$