Question

Parveen singh:



a hollow cylinder is made up of metal. The difference between outer and inter curved surface area of this cylinder is 352 cm^2 .Height of the cylinder is 28 cm if total surface area of this hollow cylinder is 2640cm^2 then what is inner and outer radius of the cylinder.



option



4,6



6,8



10,12



8,10

Answer 1

Answer:

10,12. ,.................