Question

9.
A right circular cylinder just encloses a sphere of
radius r (see Fig. 13.22). Find
(1) surface area of the sphere,
(ii) curved surface area of the cylinder,
(iii) ratio of the areas obtained in (i) and (ii).
Fig. 13.22​

Answer 1

Answer:

1) surface area of sphere is 4πr^2

curved surface area of cylinder is 2πrh