51. In the figure below, all line segments are either horizontal or vertical and the dimensions given are in inches. What is the perimeter, in inches, of the figure ?

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

For a rectangular circumscribed circle, its diagonal is the diameter of the circle. According to the Pythagorean theorem, it can be obtained that the diameter is 10 and the radius is 5, so the area of ​​the circle is 25π.