Top 10.959

Angle ADB = 60

X = PQ = 3

Orange Area = 13.08996939

X = CAD = 40

Blue Triangle Area = 30

a / b = 1.61803398875

X = BC = 12

Missing Angle BCD = 65

[ CDN ] / [ AEF ] = 2

tan 𝛼 = 0.543689012692