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Ellipse or Hyperbola

Area of Square ABDC = 50

a / b = 1 / 4 = 0.25

Sum = 43.5311847416

Shaded Fraction = 3 / 4

Fraction = 8 / 25 = 0.32

Angle APL = 60°

Orange = ϕ², Green = ϕ⁴

s = 9 ⇒ BF = s

s = 9 ⇒ Angle DFE = 45°

Blue / Total = 0.233215843356