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# Geometry 2

### Topic 11 grade 3

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

quadrilateral | a polygon with 4 sides |

pentagon | a polygon with 5 sides |

hexagon | a polygon with 6 sides |

octagon | a polygon with 8 sides |

decagon | a polygon with 10 sides |

equilateral triangle | a triangle with all sides the same length |

isosceles triangle | a triangle with 2 sides the same length; hint: SOS = same, odd man out, same |

scalene triangle | a triangle with no sides the same length |

right triangle | a triangle with 1 right angle |

acute triangle | a triangle with 3 acute angles |

obtuse triangle | a triangle with 1 obtuse angle |

trapezoid | a quadrilateral with only 1 pair of opposite sides that are parallel |

parallelogram | a quadrilateral with opposite sides that are parallel |

rectangle | a parallelogram with 4 right angles and opposite sides are the same length |

rhombus | a quadrilateral where opposite sides are parallel and all the sides are the same length |

square | a quadrilateral with 4 right angles and all the sides are the same length |

Created by:
pdeprosse