A

B

C

90°

D

E

1

2

90°/3

90°/3

90°/3

A = (4.9, 4.02)
B = (4.9, -1.9800333332407396)
a = Segment(A, B)
C = (11.981384704591223, -1.9800333332407396)
b = Segment(B, C)
α = Angle(C, B, A)
D = (10.10228437272076, -2.7420989255529595)
E = (3.685514777428788, 2.5451882664860843)
c = CircleArc(B, D, E)
F = Intersect(c, a, 1)
G = Intersect(c, b, 1)
d = Circle(G, B)
H = Point(d)
e = CircleArc(G, H, B)
I = (10.151392303296976, 1.1374275899679478)
f = CircleArc(F, B, I)
J = Intersect(c, e, 1)
K = Intersect(c, f, 1)
i = Segment(B, J)
j = Segment(B, K)
L = Point(b)
M = Point(j)
k = CircleArc(B, L, M)
N = Point(j)
O = Point(i)
p = CircleArc(B, N, O)
P = Point(i)
Q = Point(a)
q = CircleArc(B, P, Q)
g = Segment(B, J)
h = Segment(B, K)