Answer:
10.28 gallons to the nearest hundredth.
Step-by-step explanation:
I am assuming you mean 11 square feet.
Area of the wall = π r ^2 where r = the radius.
here the radius = 1/2 * diameter
= 1/2 * 12
= 6 feet.
The area = π 6 ^2
= 36 * 3.1416
= 113.10 ft^2.
So the amount of paint needed
= 113.10 / 11
= 10.28 gallons.