      | ∆ABC
GT | MB = MC
      | MA = ME
----------------------------
KL  |  AB // CE  

A = (2.8519554167018932, 4.040588210551624)
B = (-1.5598880907565793, -1.6981255247139084)
C = (12.272734034132014, -1.5986102576283787)
đa giác1, c, a, b = Polygon(A, B, C)
M = Midpoint(a)
d = Segment(A, M)
e = Line(C, c)
f = Circle(M, d)
E = Intersect(f, e, 2.0)
g = Segment(M, E)
h = Segment(C, E)
i = Segment(B, M)
j = Segment(M, C)