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# Chapter 5

### 5.2- Geometry Vocab

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

Median (of a triangle) | a segment with one endpoint at a vertex of the triangle and the other endpoint at the midpoint of the opposite side |

MedianTheorem (of a triangle) | the medians of a triangle are concurrent |

Centroid | the point of concurrency of the medians of a triangle, the center of mass or balancing point of the triangle |

Centroid Theorem | the medians of a triangle intersect at a point called the centroid that is two thirds of the distance from each vertex to the midpoint of the opposite side |

Altitude (of a triangle) | a segment from a vertex to the line containing the opposite side and perpendicular to the line containing that side |

Altitude Theorem (of a triangle) | the altitudes of a triangle are concurrent |

Orthocenter | the point of concurrency of the altitudes of a triangle, does not have any simple interesting properties |

What is the point of concurrency for a perpendicular bisector? | circumcenter |

What is the point of concurrency for a angle bisector? | incenter |

What is the point of concurrency for a median? | centroid |

What is the point of concurrency for an altitude? | orthocenter |