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# VGeometry1

### Vocabulary for Geometry class

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

Altitude | Special segment in triangles passing through vertex, perpendicular to opposite side. |

Bisect | To cut in to two equal parts. |

Centroid | Point of concurrency of 3 medians in the triangle. |

Circumcenter | Point of concurrency of 3 perpendicular bisectors in the triangle. |

Deductive Reasoning | Reasoning process based on linking statements known to be true. |

Inductive Reasoning | Reasoning process based on drawing a conclusion from examples. |

Concurrent Lines | Three or more lines intersecting at a single point. |

Collinear | Contained in the same line. |

Polygons | Geometric figure formed by 3 or more non-intersecting sides. |

Coplanar | Contained in the same plane. |

Incenter | Point of concurrency of 3 angle bisectors in the triangle. |

Construction | Creating a figure using compass and straightedge. |

Skew | Two noncoplanar, non-parallel lines that do not intersect. |

Theorem | A geometric principle that requires proof. |

Undefined Terms | Point, Line, Plane. |

Proof | A logical argument verifying the truth of a geometric principle. |

Postulate | A geometric principle that doesn't require proof. |

Point of Concurrency | Point where three or more lines intersect. |

Orthocenter | Point of concurrency of 3 altitudes in the triangle. |

Perpendicular Bisector | Special segment in triangles perpendicular to one side and bisecting that side. |

Median | Special segment in triangles passing through a vertex and bisecting the opposite side. |

Angle Bisector | Special segment in triangles, passing through a vertex and bisecting that angle. |

Sine | Opposite / Hypotenuse |

Cosine | Adjacent / Hypotenuse |

Tangent | Opposite / Adjacent |

Opposite Side | Side furthest away from chosen angle in a right triangle. |

Adjacent Side | Side next to the right angle and the chosen angle in a right triangle. |

Hypotenuse | Longest side, opposite the right angle in a right triangle. |

Trig Ratios | Sine, Cosine, and Tangent |

Created by:
dvande02