# What's Special About Inscribed Angles?

- Author:
- dthurston

- Topic:
- Angles

## We have already seen that a central angle shares the same measure as the arc it cuts off. How do inscribed angles fit in the mix?

1) DEFINITION: An

__Inscribed Angle__is an an angle with its vertex on the edge of the circle. 2) Two of the three circles below show inscribed angles.**Which one doesn't?**3) What do you notice about the size of an inscribed angle when compared to a central angle cutting off the same arc? (Be specific - Drag the identified points to investigate your claim!)