Question

a map that was created using a scale of 1 inch : 3 miles shows a lake with an area of 4.5 square inches. What is the actual area of the lake?

Answer 1

the area represents 40.5 square miles

Explanation:

Since 1 inch represents 3 miles, then 1 inch x 1 inch = 1 square inch represents 3 mi x 3 mi = 9 square miles

Therefore, 4.5 square inches would represent 4.5 x 9 square miles = 40.5 square miles