Question

Which expression gives the surface area of a sphere with radius r?

A. 4512
B. 41013
c. grav?
D.GR
SUB

Answer 1

Area of sphere is given by
`4` ·
`\pi` ·
`r^2`

Explanation:

The surface area of sphere is given by:

`Area`
`of`
`sphere`
`=4` ·
`\pi` ·
`r^2`

Option C and D are correct but is missing in the options

Option A and B are incorrect.

`\pi =3.14` to solve the area of sphere when radius is given a constant value.