To solve, you'd have to find the area of the big circle(including walk way) and minus the ice rink.
Area of the big circle = [tex] 3.15(50)^{2} [/tex] = 7850
Area of ice rink = [tex]3.14(40)^{2} [/tex] = 5024
7850 - 5024 = 2826
The answer is about 2,826 square feet.
