What is the surface area of a sphere with a radius of 11 units?

1 Answer
Mar 15, 2018

The formula for the surface area of a sphere is #4pir^2# where #r# signifies radius.

Explanation:

Plug in 11 for the radius:

#4*pi*11^2#

#4*pi*121#

#484*pi#

If you are allowed to leave your answer in terms of pi, then your final answer should be #484pi# square units

If you are to use an approximation for pi such as 3.14 or #22/7#, then multiply 484 by that approximation.