A food manufacturer stores corn oil in right circular cylindrical containers. This container has a height of 10 feet, and a base with a radius of 5 feet. What is SA, the surface are alf this container, in terms of #pi#?

1 Answer
Apr 29, 2018

#150pi ft^2#

Explanation:

To find the surface area of a cylinder, use the equation:
#SA = 2pir^2+2pirh#, in which #r# = the radius of the cylinder's base and #h# = the height of the cylinder.

Since this question is asking for an answer in terms of #pi#, first, factor out #pi# from the two halves of the equation (using the distributive property in reverse):
#SA = 2*pir^2+2pirh#
= #pi(2r^2+2rh)#

Second, plug in your variables and solve:
= #pi(2*5^2+2*5*10)#
= #pi(2*25+100)#
= #pi(50+100)#
= #150pi#

We do not need to further multiply 150 and #pi#, since the question asks for an answer in terms of #pi# . Therefore, your final answer is #150pi ft^2#!

If the question specifies to not leave your answer in terms of #pi#, your answer would be around #471.24 ft^2#.