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# unit 5 list 2

### unit 5 vocabulary mrs. maes list 2

Question | Answer |
---|---|

Central angle | Central angles are angles in which the vertex of the angle is the center of a circle. |

Circle | The set of all points in a plane that are the same distance, called the radius, from a given point, called the center. |

Circle Graph | Shows how parts relate to a whole and to each other |

Circumference | The distance around a circle. |

Chord | A chord is a line segment between two points on a circle. |

Diameter | The line segment that goes through the center of the circle and whose endpoints are on the circumference of the circle is called a diameter. The length of this line segment is also called the diameter |

Degree | A unit for measuring angles |

Pi | The ratio of the circumference of a circle to its diameter |

Protractor | A measuring device that can be used to approximate the measure of an angle |

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

Sector | Pie-shaped sections on a circle graph to represent portions of the data or percentage of the whole |

Created by:
mcrippen