Answer:
The total wall area is 864 ft²
The number of gallons of paint needed for the total wall area is 6 gallons.
Explanation:
Given;
dimension of first two side walls = 22 feet by 9 feet
dimension of second two side walls = 26 feet by 9 feet
dimension of the ceiling = 22 by 26
The total wall area is given by;
A = 2(22 x 9) + 2(26 x 9)
A = 864 ft²
144 ft² ---------------1 gallon of paint
864 ft² --------------?
= 864 ft² / 144 ft²
= 6 gallons
Therefore, the number of gallons of paint needed for the total wall area is 6 gallons.