Question

The diagram shows one side of a storage barn.

Answer 1

Answer to A and B.

The area of rectangle: 22.8×14.5=330.6 ft²The area of rectangle: 22.8×14.5=330.6 ft²

The area of triangle: 12⋅12⋅22.8=136.8 ft²The area of triangle: 12·12·22.8=136.8 ft²

The total area of figure: 330.6+136.8=467.4 ft²The total area of figure: 330.6+136.8=467.4 ft²

B: In order to find how many gallons of paint are needed, we need to divide the total area that needs to be painted (467.4 square ft) by the area one gallon covers (350 square ft)

467.4 ÷ 350 ≈ 1.34 gallons

Since only whole gallons of paint can be purchased, you will need 2 gallons of paint.

At $20 each, the cost will be 2 x $20 or $40.