Question

A worker draws a 1/5 scale drawing of the top of a small air conditioning unit .the drawing is a rectangle with a length of 4 inches and width of 2 inches , what is the actual area of the top of the unit? how did you come to this conclusion?

thank you!

Answer 1

Area of the rectangle = L X W
Area of the rectangle = 4 X 2
Area of the rectangle = 8 inches
If the drawing is 1/5 of the actual air conditioning unit, then you multiply the reciprocal which is 5 times the area of the drawing. When you want to enlarge it has to be a whole number. When you want to reduce you multiply by a fraction.
So 8 inches X 5 = 40 inches is the actual area of the unit.