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##### Sections

###### Pairs of Lines and Angles

Exercise name | Free? |
---|---|

Pairs of Lines and Angles 1 | |

Pairs of Lines and Angles 2 | |

Pairs of Lines and Angles 3 | |

Pairs of Lines and Angles 4 |

###### Parallel Lines and Transversals

Exercise name | Free? |
---|---|

Parallel Lines and Transversals 5 | |

Parallel Lines and Transversals 6 | |

Parallel Lines and Transversals 7 | |

Parallel Lines and Transversals 8 |

###### Proofs with Parallel Lines

Exercise name | Free? |
---|---|

Proofs with Parallel Lines 9 | |

Proofs with Parallel Lines 10 | |

Proofs with Parallel Lines 11 | |

Proofs with Parallel Lines 12 |

###### Proofs with Perpendicular Lines

Exercise name | Free? |
---|---|

Proofs with Perpendicular Lines 13 | |

Proofs with Perpendicular Lines 14 | |

Proofs with Perpendicular Lines 15 | |

Proofs with Perpendicular Lines 16 |