Question

The volume of a cylinder is 6358cm cube and its height is 28cm .Find its radius and the curved surface area.

Answer 1

volume of cylinder =pie r*r*h

6358=22/7*r*r*28

6358=22*r*r*4

6358=88*r*r

6358/88=r*r

72.25=r*r

r=8.5

C. S. A=2pie*r*h

= 2*22/7*8.5*28

=2*22*8.5*4

=44*34

=1496sq.cm