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# Stack #1571424

Term | Definition |
---|---|

circle | The set of all points in an plane that are equidistant from a given point, called the center of the circle |

center | Given point in the middle of circle |

radius | The distance from the center of a circle to a point on the circle |

diameter | A chord that passes thru the center of a circle. The distance across the circle. |

chord | A segment whose end points are points on the circle |

secant | A segment that intersects a circle in two points, with one point as an endpoint of the segment. |

tangent | A line in the plane of a circle that intersects the circle in exactly one point |

concentric | Coplanar circles that have a common center |

central angle | An angle whose vertex is center or the circle |

inscribed angle | An angle whose vertex is on a circle and whose sides contain chords of the circle |

minor arc | An arc that is less that 180 |

major arc | An arc that is more than 180 |

semicircle | When the endpoints of an arc are the endpoints of a diameter |

intercepted arc | The arc that lies in the interior of an inscribed angle and has endpoints on the angle |

inscribed | If all the vertices of a polygon lie on a circle |

circumscribed | A circle with an inscribed polygon |

equidistant | Equal distance |

apothem | The height of a triangle between the center and two consecutive vertices of the polygon |

circumference | The distance around a circle |

arc length | Portion of the circumference of a circle |

area | Equals Pie R squared |

sector | The region bounded by the two radii of the circle and their intercepted arc |

Created by:
karenroeder