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1. | the measure of the quantity of matter in an object |

2. | lines that never cross and are the same distance apart |

3. | the answer to a division problem |

6. | a quadrilateral that has exactly one pair of parallel sides |

7. | the two numbers in an ordered pair |

8. | a solid figure with siz flat surfaces called faces; all the faces are squares |

9. | the distance around the outside of a polygon |

10. | the number that results from subtracting one number from another |

12. | a polygon with six sides |

15. | a letter, such as n, that stands for a number in an expression or equation |

17. | a polygon with eight sides |

18. | a plane figure which when folded gives the original shape of a solid |

21. | a measure of how light or heavy something is |

23. | the middle number in an ordered set of data |

25. | a set of points that goes on forever in two directions |