Secant Secant Theorem for Circles and Segments

Author:
hoffmpa
Topic:
Geometry
Analyze the figure given to write a two column proof of the secant secant theorem which states that o*w=o*w where o stands for the outer secant segment and w stands for the whole entire secant segment. You can move the points around if you'd like to help identify any relevant patterns. The unlabeled point will change the size of the circle.