Question

the radius of a sphere is3.5cm find its surface area and volume​

Answer 1

For calculating the volume of the sphere we use the formula 3/4πr2

we cant find area as it is a sphere

Answer 2

Explanation:

Radius of sphere = 3.5cm

surface area of sphere = 4πr^2

= 4*22/7*3.5*3.5

= 154 sq. cm

volume of sphere = 4/3πr^3

= 4/3*22/7*3.5*3.5*3.5

=539/3 = 179.66 cu. cm