Question

que-6 A sphere is surrounded by a right circular cylinder
of radius 7 cm.
(a) surface
area of sphere
(b) Curved surface area of Cylinder​

Answer 1

Step-by-step explanation:

A shown in the figure, the radius of the cylinder will be r and height of the cylinder will be 2r.

∴ curved surface area of the cylinder = 2πrh

=2π(r)(2r)

=4πr

2