A = (-2, 0)
B = (3, 0)
c = Circle(A, B)
piirto1: PenStroke[(-2.3500E0,6.2800E0), (-2.3300E0,6.2200E0), (-2.3100E0,6.1400E0), (-2.3100E0,5.7800E0), (-2.3100E0,5.5600E0), (-2.2900E0,5.5000E0), (NaN,NaN), (-2.4300E0,6.3400E0), (-2.3500E0,6.3400E0), (-1.9100E0,6.3400E0), (-1.7000E0,6.3300E0), (-1.5900E0,6.2800E0), (-1.5100E0,6.2200E0), (-1.4000E0,6.1300E0), (-1.4400E0,6.0200E0), (-1.6700E0,5.9600E0), (-1.8700E0,5.9200E0), (-2.1500E0,5.9200E0), (-2.3100E0,5.9200E0), (NaN,NaN)]
B' = Rotate(B, 66.5°, A)
α = Angle(B, A, B')
C = Point(c)
f = Segment(A, B)
g = Segment(A, B')
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D: (x(B'), 0)
k1, b', a, d = Polygon(A, D, B')
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