Drag vertex A of triangle ABC
and vertex D of triangle DEF.

Think about dependencies 
you notice and what you 
wonder about this figure.

Construct a triangle inscribed 
in a triangle that behaves the 
same as this one. 

A = (-0.2, 2.88)
B = (3.26, 2.9)
a = Segment(A, B)
c = Circle(A, B)
d = Circle(B, A)
C = Intersect(c, d, 1)
z = Intersect(c, d, 2)
b = Segment(C, z)
poly1, c_1, a_1, b_1 = Polygon(A, B, C)
D = Point(b_1)
e = Circle(B, Segment[D, A])
E = Intersect(e, a, 1)
f = Circle(C, Segment[D, A])
F = Intersect(f, a_1, 1)
poly2, f_1, d_1, e_1 = Polygon(D, E, F)