Question

a scale drawing of a bathroom is shown:
one side is 3.5 inches, and the other is 2 inches it is scaled to 1:20

What is the area of the actual bathroom in square feet? Round your answer to the nearest whole number.


7 ft2

19 ft2

12 ft2

140 ft2

PLEASE EXPLAIN

Answer 1

Scale of drawing = 3.5 inches by 2 inches
Actual bathroom = (3.5 x 20) inches by (2 x 20) inches = 70 inches by 40 inches = 70/12 feet by 40/12 feet = 5.83 feet by 3.33 feet
Area of actual bathroom = 5.83 x 3.33 = 19ft^2