A = (4.2, -2.56)
B = (18.48, -3.14)
C = (14.62, 4.28)
t1, c, a, b = Polygon(A, B, C)
F = Midpoint(A, B)
D = Midpoint(B, C)
E = Midpoint(C, A)
f = OrthogonalLine(C, c)
g = OrthogonalLine(B, b)
h = OrthogonalLine(A, a)
G = Intersect(h, a)
H = Intersect(g, b)
I = Intersect(f, c)
Q = Intersect(f, g)
J = Midpoint(Q, A)
K = Midpoint(Q, B)
L = Midpoint(Q, C)
O = Midpoint(L, F)
d = Circle(O, E)