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1. | An angle inside a circle whose vertex is on the circle |

3. | A geometry rule that can be proven to be true |

4. | An angle that is more that 0 but less than 90 degrees |

5. | A line that intersects a circle 2 times |

6. | An arc of a circle that measures more than 0 but less than 180 degrees |

7. | 2 lines that meet to form a right angle |

9. | Theorem that states the sum of the 2 legs squared equals the hypotenuse squared. |

11. | An arc of a circle that measures 180 degrees |

15. | 2 lines in a plane that never intersect |

16. | A quadrilateral with 4 right angles and 4 equal sides |

17. | A segment whose endpoints are on the circle and goes through the center of the circle |

20. | A triangle with no equal sides |

21. | An angle inside a circle whose vertex is at the center of the circle |

22. | Trigonometric ratio for the opposite leg over the hypotenuse |

24. | A segment whose endpoints are on the circle |

25. | An angle that is more that 90 but less than 180 degrees |

27. | An arc of a circle that measures more than 180 but less than 360 degrees |