Top 10.929

b / a = 1.41421356237 = √ 2

Orange Area = 20.6663875594

X = DE = 1.14159265359

X = CK = 8

Shaded Fraction = 1 / 4 = 0.25

Missing Angle X = 24

Blue Rectangle Area = 48

Radius R = 7.59591794227

Circle Radius = 20 / 9

X = AC = 6