Top 10.589

Green Area = 20.7846096908

R = 5. b = 2.5. a = 0.5

Another Approach

Side s = 120

Minimum = 9.89949493661

Maximum BAC = 105°

Minimum of ( AC + 3 + BD ) = 13

Simplified / Improved

Blue Area = 64 Square Units

Orange Area = 40.5659993751

Square Area = 29 / 4 = 7.25

Shaded Fraction = 1 / 7