Top 10.912

Shaded Area = 24.8778986464

X = AD = 4

Orange Area = 39.3296611698

Missing Angle BAC = 30

Square ABCD Area = 2

Solution = 18

Square ABCD Area = 180

X = DE = 3.60555127546

Angle ACD = 15

Yellow Area = 5.59119022502