Given that Emmit wants to insulate the 3 walls of his garage, you know that:
- The two side walls are 14 feet high and 20 feet long.
- The back wall is 14 feet tall and 16 feet long.
You need to find the area of each wall and then add them, in order to calculate the number of square feet of insulation Emmitt will need.
Assuming that all the walls in Emmitt's garage are rectangular, you need to apply this formula for calculating the area of a rectangle:
Where "l" is the length and "w" is the width.
Therefore, you can set up that the total area of the garage Emmitt wants to insulate is:
Evaluating, you get:
Hence, the answer is: Emmitt will need: