35. An 8-foot-square sheet of tin from which 4 identical circles are cut is shown below. Each circle is tangent to 2 other circles and tangent to 2 of the edges of the square. What is the approximate area, in square feet, of the remaining tin, as indicated by the shaded region below?

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

The radius of each circle is 2, so the area of ​​each circle is 4π, and the sum of the areas of the four circles is 16π. The area of ​​the square is 64, so the area of ​​the shaded part is 64-16π, or 13.7. Choose D.