METRIC UNIT CONVERSION

Question

On a floor plan drawn at a scale of 1:100, the area of a rectangle is 30 cm2. What is the actual area of the room?

Answer 1

Attach units to the scale. The scale becomes 1cm to 100cm. Convert the units. The scale becomes 1cm to 1 meter. Square both parts of the scale. 1 cm2 to 1 meter2. This is the conversion factor you can use to solve the problem. Create the following proportion 1cm2 to 1meter2 equals 30 cm2 to x meters2. Solve

for x. x=30 meters2.