Question

Cody is painting the front door of his house. The dimensions of the door are 80 inches by 36 inches by 2 inches. If he paints all of the surfaces, how much area will he paint?

Answer 1

To determine how much area he will paint, you will find the areas of all six faces that are on his door.

Each face is in the shape of a rectangle, so use this formula.

The front and back, left and right side, top and bottom will be the same. This means you only need three different calculations.

80 x 36 = 2880 in.²
36 x 2 = 72 in.²
80 x 2 = 160 in.²

2880 in.² +72 in.² +160 in.² equals 3112 in.².

3112 in.² X 2 = 6224 in.²

The total area of the services he will paint is 6224 in.².