| Term | Definition |
|---|
| Circle | Is the set of points which are all the same distance (its radius) from a certian point( the center). |
| Radius (Radii) | A segment connecting the center of a circle to any point on the circle |
| Diameter | The distance across the circle through the center of the circle.The diameter is twice the radius. |
| Chord | The distance from one point on the circle to another point on the circle. |
| Sector | The part of a circle that looks like a piece of pie. A sector is bounded by 2 radii and an arc of the circle. |
| Arc | Part of a circle connecting two points on the circle. |
| Central Angle | An ange whose vertex is the center of the circle |
| Circumference Formula | C =TTd |
| Area of Circles | A=TTr2 |
Combine with other sets
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