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# Ms. Bell Unit 4

### Geometry

Question | Answer |
---|---|

What are the ways to prove triangles congruent? | SSS, SAS, ASA, and AAS |

What is the third angles theorem? | 2 angles in 1 triangle are congruent to 2 angles in other so the the third one is congruent. |

What is a vertex? | When sides intersect |

What is an adjacent sides? | 2 sides sharing a vertex |

what is the triangle sum theorem? | The sum of the measures of the interior angles of a triangle is 180 degrees |

What is the exterior angle theorem? | The measure of an exterior angle of a triangle is equal to the sum of the measures of the nonadjacent interior angles. |

What is the corollary to the triangle sum theorem> | the acute angles of a right triangle are complementary |

What is the distance formula? | square root (x2-x1)^2 + (y2-y1)^2 |

Created by:
korinna.garfield