+394 In the chart below, the circumference, C, of a circle is given. Find the values of r (radius), d (diameter), and A (area) for this particular circle. Leave
+129849 C = 22pi ft
C = 2 * pi * r ....so....
22 pi = 2 * pi * r divide out pi
22 = 2 * r divide by 2
11 ft = r 22 ft = d
And Area = pi (r^2) = 121 pi ft^2
