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1. | A 3-D locus of points equidistant from a single point. |

2. | Segment whose endpoints begin and end on a cirlce. |

3. | Perpendicular distance from the top of a geometric figure to it's opposite side. |

4. | A 2-D locus of points equidistant from a given point. |

5. | A transformation that produces a reduction or enlargement image. |

6. | A transformation that produces an image about a given point. |

9. | Line or ray that passes through only two points of a circle. |

10. | The point where three perpendicular bisectors intersect. |

13. | 2-D diagram that can be folded into a 3-D polyhedron. |

14. | When a geometric figure is drawn around another geometric figure touching certian points. |

15. | a/h |

16. | a^2 + b^2 = c^2 |

17. | 4-sided platonic figure created from equilateral triangles. |

18. | A quadrilateral wich both pairs of opposite sides are parallel. |

19. | "If p, then q." becomes "If not q, then not p." |

21. | 6-sided 2-D figure. |

24. | 8-sided 2-D figure. |

26. | Two lines that intersect at a 90-degree angle. |

30. | The point, in a triangle, where three angle bisectors intersect. |

31. | 5-sided 2-D figure. |

32. | line segment joining two non-adjacent vertices in a polygon. |

35. | A circle about a sphere that contains a diameter of the sphere. |

37. | An infinite set of points exending infinitely in only one direction. |

39. | An infinite 2-D surface define by at least three non-collinear points. |

41. | 20-sided platonic figure created from equilateral triangles. |

42. | Circles having the same center. |

44. | "If p, then q." become "If q, then p." |

47. | 8-sided 3-D figure created from equilateral triangles. |

48. | A closed 2-D figure made up of line segments connecting at vertices. |

49. | A transformation that produces an image over a given distance and direction. |

51. | The amount of space a 3-D figure occupies. |

55. | Same shape different size. |

56. | Line or segment where two planes or face intersect. |

58. | The point common to two rays that form an angle. |

59. | Line segment of a circle extending from the center to the circle. |