Consider the actual dimensions of the garage as a similar shape. Find the ratio of the scale factor between the actual garage and the scale drawing at right.
20 feet = 1 inch
Refer to the drawing below. The living room is in the upper left corner of the house. Its width is the same as the garage.
Use the scale drawing dimensions from part (b) and the scale factor for feet from part (a).
40 feet by 25 feet.
Make sure you know why this is the answer.
Use your answer from part (c) to determine the actual area of the living room (in square feet).
Refer to parts (a) through (c) for help.