Helpful formulas: Area of Circle: A = 1V2 Circumference of Circle: C = 27v Athletic Field 1 An athletic field is designed as a rectangle with a semicircle at each end. The total perimeter of the field is 400 meters. a. Express the area of the field as a function in terms of the radius, r, of the semicircles. Solution: Let's start by labeling the picture. If the radius of the top semicircle is r, what is the length of its perimeter (circumference)? Submit your answer below as an expression in terms of r. Note: Typing "pi" produces the pi symbol. Try again. 200 7 Hr meters I Edit my response