1. Draw a circle with center labeled A.

2. Construct any two points, labeled C and D, on the circle, and then construct chord CD.

3. Construct the segments AC and AD.

What can you say about AC and AD?

What can you say about angles ACD and ADC?

4. Construct the midpoint, E, of CD, and then segment AE.

What can you say about triangles ACE and ADE?

What can you say about angles AEC and AED?

5. Write a good general statement about "the situation" investigated in #1-4 above.