4. | A segment of the circumference of a circle. |

6. | The branch of mathematics that deals with the measurement properties and relationships of points,line,angles,surfaces,and solids. |

9. | The set of all points in space equidistant from a fixed point called the center. |

11. | A pair of rays that have a common endpoints ,provided that the rays do not lie on line. |

14. | A polyhedron with two congruent parallel faces known as bases. |

15. | A line segment joining two nonconsecutive vertices of a polygon. |

17. | The distance around a circle. |

18. | A quadrilateral in which the opposite sides are parallel. |

19. | Represents an exact location in space. It has no size. |

21. | The number of a square units contained in the interior of a plane figure. |

23. | In a right triangle, the side opposite the right angle. |

25. | An expression that compares two quantities by division. |

28. | A quadrilateral with exactly one pair of opposite sides parallel. |

30. | Two angles sharing a common side and vertex but no interior points in common. |

31. | A flat polygonal surface of a polyhedron. |

33. | A statement that validity or truth of which are assumed without proof. |

34. | A four-sided polygon. |

36. | A method of constructing a valid argument. |

37. | A parallelogram whose sides and angles are all congruent. |

39. | A solid form by polygons that enclose a single region in space. |

42. | Angles whose vertex is on the circle and whose side are chords of the circle. |

43. | The second coordinate in an ordered pair representing a point obtuse angle. |

44. | A set of infinitely many points in straight arrangement and extends indefinitely in opposite directions. |

45. | A line, A segment, or a ray that intersect a circle at exactly one point. |

46. | Is a line which intersects the circle at two distinct points. |

47. | A line segment that joins the center of a circle to a point on the circle. |