Question

assume the radius of a certain planet is 3370 mm and the planet is a sphere. what is the surface area?

Answer 1

SA of a sphere:
`4\pi r^2`

Plug in 3,370 for r, the radius.

`4\pi 3370^2` = 1.43 × 10⁸

The surface area of the sphere would be 1.43 × 10⁸, or 143,000,000 mm².

Answer 2

we are given

radius is 3370 mm

`r=3370mm`

and shape is sphere

so, we can use surface area of sphere formula

`S=4\pi r^2`

now, we can plug value of r

`S=4\pi (3370)^2`

now, we can solve for S

and we get

`S=142715014.43022 mm^2`............Answer