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# 10 geomerty vocab

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

acute angle | an angle with measure between 0 degrees and 90 degrees. |

adjacent angle | two angles with a common vertex and side but no common interior points |

angle | consists of two diffrent rays that have the same initial point |

angle bisector | a ray that divides an angle into two adjacent angles that are congruent |

collinear points | points thta lie on the same line |

congruent | having the same size and shape |

congruent angels | angles having thye sam e mesure |

coordinate | the real number that corresponds to a point on a line |

coplanar points | points that lie on the same plane |

distance | the abdolute value of the diffrence between the coordinates of the points |

equal | having the same measure |

intersect | to have one or more poins in common |

length | the distance between the andpoints of a segment |

line | extends infiniely in one dimension |

midpoint | the point that divides, or bisects a segment into two congruent segments |

obtuse angle | an angle with measure between 90 degrees and 180 degrees |

oppposite rays | two rays with the same inital point extending in oppositde directions |

plane | extends infinitely in two demensions |

point | has no dimension |

ray | part of a linethat consists of an initial point and all points on a line that extend in one direction |

right angle | an angle with measure equal to 90 degrees |

segment | part of a line that consists of two endpoints and all points between the endpoints |

segment bisector | a segment, line, ray or plane that intersects a segment as its midpoint |

skew lines | two lines that do not intersect and are not coplanar |

straight angle | an angle with measure equal to 180 degrees |

vertex of an angle | the inital point of the two rays that create the angle |

Bisect | cut in half |

definition | Uses known words to describe a new word |

Undefined Term | Words that are not formally defined, although we have a general agreement about what each word means. Examples include “point”, “line” and “plane.” |

Postulate (Axiom) | A statement whose truth is accepted without proof |

Theorem | A statement that is proved by deductive reasoning |

Created by:
katcanny