Question

How do you find the surface area of the sphere in terms `pi` given `S=4pir^2` and r= 2.4 m?

Answer 1

See a solution process below:

Explanation:

Substitute `2.4"m"` for `r` in the formula and calculate the result:

`S = 4pir^2` becomes:

`S = 4pi(2.4"m")^2`

`S = 4pi5.76"m"^2`

`S = (4 xx 5.76)pi"m"^2`

`S = 23.04pi"m"^2`

The surface area of the sphere is `23.04pi` square meters