Question

Find the surface area of the sphere with the given diameter or radius. Leave your answer in terms of pi.
radius=10

Answer 1

formula for surface of a sphere is
4 pi r^2 where r is the radius

Answer 2

just plug in your value for r and simplify and you have it

Answer 3

my book says 4 pi r^3........

Answer 4

to find volume of sphere

Answer 5

no its r^2

r u sure you are not looking at the volume which is (4 pi r^3) / 3 ?

Answer 6

oh teehee yea it was surface area ....

Answer 7

it is 400 pi

Answer 8

right

Answer 9

anything with a cube will be a volume e.g. a^3, 2r^3 etc

Answer 10

or abc, ac^2 etc - where there are 3 variables multiplied together