A

B

C

M

S

68°

A = Intersect(xAxis, yAxis)
B = Point(xAxis)
c = Circle(A, B)
C = Point(xAxis)
d = Circle(C, A)
D, E = Intersect(d, c)
a = Line(E, C)
F, G = Intersect(c, a)
α = Angle(G, B, C)
H, I = Intersect(c, xAxis)
β = Angle(I, C, F)
J = Point(d)
K = Point(c)
e = CircleArc(A, B, K)
f = CircleArc(C, J, A)
b = Segment(I, B)
h = Segment(G, B)
g = Segment(G, F)