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Angle CAE = X = 50°

Proof: d = 1 ⇒ FC ⊥ BD

BC = 5.09901951359

EF = X = 5 / 2 = 2.5

Angle AMD = X = 36°

FEG = X = 48°

Red - Green = 22.5 cm²

Red Circle Arc AB = 8

Angle ETF = X = 45°

Red Area / Orange Area = 1