ACCESS - Congruent Inscribed Angles
Angles P and Q both intercept arc CD. 1. Drag points C and D to change the length of the arc, BUT make sure P or Q are not on arc CD. How does the size of the angles change? 2. Drag points P and Q to change the orientation of the inscribed angles BUT do not drag them onto arc CD. How do the angles change? 3. Why won't the angles be equal if either P or Q is on the arc CD?