On an aerial photograph, the surface of a pond appears as circular region of radius 7/16 inch. If a distance of 1 inch on the photograph corresponds to an actual distance of 2 miles, which of the following is the closest estimate of the actual surface area of the pond, in square miles?A. 1.3B. 2.4C. 3.0D. 3.8E. 5.0
We are to find the area of a circle with radius (7/16) 2=7/8 miles. Now the area of circle is \pi r². It is closer to 3 then 2.4. It is between those numbers.
