Hình ảnh tam giác BCD

A = (1.3248881749260346, -0.13564631102070912)
B = (-2.070990615754438, -4.052226516272187)
C = (6.101757673816567, -3.9843089404585785)
đa giác1, c, a, b = Polygon(A, B, C)
d = Line(B, A)
e = Circle(A, C)
D = Intersect(e, d, 2.0)
f = Segment(D, A)
g = Segment(D, C)
α = Angle(D, C, A)
β = Angle(A, D, C)
γ = Angle(D, C, B)
E = (9.65611080806213, -3.9390305565828387)
h = Line(E, a)
i = Line(E, c)
k = Circle(E, a)
F = Intersect(k, h, 2.0)
p = Circle(F, g)
G = Intersect(p, i, 1.0)
j = Segment(E, F)
l = Segment(F, G)
m = Segment(G, E)
δ = Angle(E, G, F)
ε = Angle(G, F, E)