Question

Q. 1 curved surface area of a cylinder is 4244cm² and its height 33 cm . find the radius​

Answer 1

Answer:

the curved surface area of a cylinder is 2πr.h

where r is the radius and h is the height of the cylinder.

so,

2.22/7.r.33=4244

=> 2.22.33.r=4244×7

=> r=4244×7/2.22.33

=> r= 20.46

radius is 20.46 cm