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# PA Geometry Terms

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

Trapezoid | A quadrilateral with one pair of parallel sides |

Parallelogram | A quadrilateral with two pairs of parallel sides |

Rhombus | A quadrilateral with two pairs of parallel sides and four sides of equal length |

Rectangle | A quadrilateral with two pairs of parallel sides and four right angles |

Square | A quadrilateral with two pairs of parallel sides, four right angles, and four sides of equal length |

Right Triangle | A triangle with one right angle and two acute angles |

Acute Triangle | A triangle with three acute angles |

Obtuse Triangle | A triangle with one obtuse angle and two acute angles |

Scalene Triangle | A triangle with three side of different lengths |

Isosceles Triangle | A triangle with at least two sides of equal length |

Equilateral Triangle | A triangle with three sides of equal length |

Parallel Lines | Two lines that never meet |

Perpendicular Lines | Two lines that intersect at 90 degrees |

Complementary Angles | Two angles whose measures have a sum of 90 degrees |

Supplementary Angles | Two angles whose measures have a sum of 180 degrees |

Vertical Angles | Two pairs of angles that do not share a side and have the same measure--formed by intersecting lines |

Created by:
jlparker