Top 10.89

X = DE = 1.73205080757

Blue Area = 96

Segment AB = 1.9364916731

Proof: Perimeter = Area = 24

Orange Area = 19.5039475

Shaded Fraction = 1 / 9

Orange Fraction = 1 / 48

Perimeter ( dotted ) = ?

Angle DFE = 30

Red Area - Orange Area = 36