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Angle CBD = 24°

Without Regression

Angle ACD = X = 36°

ADB = X = 72°

Angle FBG = X = 30°

Shaded Fraction = 12 / 25

Without Regression

Area of Square = 16

Angle ACB = X = 40°

Angle AOB = 40°

Ratio of Green / Mauve = 3

Ratio of Orange / Blue = 1 / 2