1.4 Angle Addition Postulate

Move the points A, B, C and D around and observe how each one effects the image and values. 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)?

Graph the relationship between (x) and (y) by moving point D to get multiple points and create a line of best fit. Describe the result and what the graph shows.