The amount of paint that is needed to the exterior four walls and two triangular faces is 23 gallons.
What is an area?
The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.
The total area of the walls will be
= 2 [ (84×20) + (38×20) + (0.5×38×12) ]
= 5,336 ft²
Now, since a gallon can paint is 232 ft², therefore, the amount of paint that will be needed to paint the walls are,
Amount of paint = (5,336 ft²)/(232 ft²) = 23 gallons
Hence, the amount of paint that is needed to the exterior four walls and two triangular faces is 23 gallons.
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