# Angle Addition

- Author:
- Tricia Perrone, spencerkingman, Jill Alsman, Philip Taylor, Dan Dale

Move the points A, B, C and D around and observe how each one effects the image and values. Consider the following questions while moving various parts. 1. How does moving Point A effect the values and image? 2. How does moving Point B effect the values and image? 3. How does moving Point C effect the values and image? 4. How does moving Point D effect the values and image? 5. What overall observation(s) have you notice about the relationship of the 2 small angles (CBD and ABD) and the overall big angle (CBA)? Write an algebraic sentence to describe the relationship between the 2 small angles (CBD and ABD) and the overall big angle (CBA).