Top 10.949

R = 3.125 = 25 / 8

X = ABC = 30

X = Angle DKF = 90

Red Triangle Area = 4

Pink Area = 15.7079632679

Circle Area = 12.5663706144

Circle Radius R = 2

X = BC = 19

Segment EF = 10

Without Trigonometry

Yellow Square Area = 8