BC²

AC²

AB²

A = (4.92, -4.08)
B = (9.76, -4.74)
a = Segment(A, B)
b = OrthogonalLine(A, a)
C = Point(b)
c = Segment(C, B)
α = Angle(B, A, C)
d = Segment(A, C)
poly1, b_1, a_1, c_1 = Polygon(A, C, B)
poly2, c_2, b_2, e, f, D, E = Polygon(C, B, 4)
poly3, a_2, c_3, g, h, F, G = Polygon(A, C, 4)
poly4, AB, a_3, i, j, H, I = Polygon(B, A, 4)