Pappus's Hexagon Theorem

Author:
linkelr
Pappus if Alexandria is a Greek mathematician who is known for his synagouge and pappus's theorem. Pappus's theorem states that if A, B, and C are a set of collinear points, a, b, and c are another set of collinear points, and Ab meets Ba at X, Ac meets Ca at Y, and Bc meets Cb at Z, then points X, Y, and Z are collinear.