A = (2.78, 0.9)
B = (5.76, 0.92)
a = Segment(A, B)
c = Circle(B, A)
d = OrthogonalLine(A, a)
e = Circle(A, B)
C = Intersect(c, e, 2)
poly1, c_1, a_1, b = Polygon(A, B, C)