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Central & Inscribed Angles Discovery

This is an investigation to determine the relationship between a central angle and an inscribed angle. The points on the circle and the radius are dynamic and can be moved. Answer the questions below.

Move point D. How does this change the inscribed angle measure?

Does changing the radius change the angle measures?

What is the relationship between the central angle (BAC) and the arc measure?

What is the relationship between the inscribed angle (BDC) and central angle?