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# Chapter 7 VOCAB

### Vocabulary learned in Chapter 7

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

acute angle | An angle that measures between 0 and 90 degrees |

acute triangle | A triangle with three acute angles |

adjacent angles | Angles that share a common vertex, share a side and do not overlap. |

complementary angles | Two angles that add to 90 degrees |

congruent | Same size and shape |

congruent segments | Segments that are the same length |

equilateral triangle | A triangle with three equal sides |

isosceles triangle | A triangle with two equal sides |

obtuse angle | An angle that measures between 90 and 180 degrees |

obtuse triangle | A triangle with ONE obtuse angle |

right angle | An angle that measures exactly 90 degrees |

right triangle | A triangle with ONE right angle |

scalene triangle | A triangle with three sides of different length |

straight angle | An angle that measures exactly 180 degrees |

supplementary angles | Two angles that add to 180 degrees |

Triangle | A polygon with three sides |

vertical angles | Opposite angles formed by two intersecting lines |

protractor | tool used to measure degrees |

perpendicular | Two lines that form a right angle |

vertex | Where the two rays of an angle meet |

reflex angle | An angle more than 180 degrees |

Created by:
kgierman