SOLUTION: Can you please help me with this problem? The exterior of a spherical water tank is to be painted. The radius of the tank is 15 feet. How many square feet will need to be painted?

Question 93315: Can you please help me with this problem? The exterior of a spherical water tank is to be painted. The radius of the tank is 15 feet. How many square feet will need to be painted? I got 2826ft^ the first time but I don't know if I used the correct formula. Thank you in advance!!!
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Well, let's see if you got it!
The surface area (S) of a sphere is given by:
where r is the radius of the sphere.
In this problem, r = 15 ft, and we can use as an approximation.

sq.ft.
So you are right on!

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