Top 10.215

Blue / Green = 1 / 4 = 0.25

Shaded Fraction = 14 / 25

Shaded Area = 21.9911485751

Segment AB = X = 8

Proof WITH Trigonometry

Segment BF = X = 8

CO = X = 1 / ( sin α + 1 )

Blue Area = 339 / 2

Blue Area = 53

Orange Area = 30