Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Activity 13-14 Vocab

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

Point of Concurency | A point where three or more lines intersect |

Altitude | A segment that connects a vertex of a triangle to the opposite side so that it is perpendicular to that side |

Median | A segment that connects a vertex of a triangle to the midpoint of the opposite side |

Angle Bisector | A line, segment, or ray that divides an angle into two congruent parts. |

Perpendicular Bisector | A line, segment, or ray that divides a segment into two congruent parts and is perpendicular to the segment |

Midsegment | A segment that joins the midpoints of two sides of a triangle |

Centroid | The point at which three medians intersect in a triangle |

Incenter | The point at which three angle bisectors intersect in a triangle |

Circumcenter | The point at which three perpendicular bisectors intersect in a triangle |

Orthocenter | The point at which three altitudes intersect in a triangle |

Exterior Angle Theorem | The sum of the measures of the two remote interior angles is equal to the measure of the exterior angle |

Triangle Sum Theorem | The sum of the measures of the three interior angles of a triangle is equal to 180 degrees |

Isosceles Triangle Theorem | If a triangle is isosceles, then the base angles are congruent |

Interior Angle | An angle formed by two sides of a triangle |

Exterior Angle | An angle formed by one side of a triangle and the extension of an adjacent side |

Remote Interior Angle | An interior angle that is not adjacent to a given exterior angle |

Isosceles Triangle | A triangle with two congruent sides |

Centroid Measure Theorem | The distance from the centroid to the vertex is twice the distance from the centroid to the Midpoint |

Base Angles | Angles opposite the congruent sides of an isosceles triangle |

Created by:
MsClaytonKHS