This lesson is to be used to discover relationships between central angles, inscribed angles and the measure of the intercepted arc.

Directions:[br]o Check on the checkbox to Show Central Angle and its Measure[br]o Check on the checkbox to Show Arc and its Measure[br]o Drag points C and D and record at least three measures:[br]o Make a conjecture about the relationship between a central angle and its intercepted arc:[br]o Check on the checkbox to HIDE Central Angle and its Measure[br]o Check on the checkbox to Show Inscribed Angle and its Measure[br]o Drag points E, C and D and record at least three measures:[br]o Make a conjecture about the relationship between a central angle and its intercepted arc: