Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Howard Geometry 2

### Chapter 2 Geometry Vocabulary

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

Adjacent Angles | Two angle that share a common vertex and common side, but no common interior points |

Theorem | A true statement that follows from other true statements |

Hypothesis | The "if" part of an if-then statement |

Transitive Property | If AB=BC and BC=DE, then AB=DE |

Bisect | To divide into two equal halves |

Angle Bisector | A ray that divides and angle into two equal angles |

Complementary Angles | Two angles whose sum is 90 degrees |

Deductive Reasoning | Uses facts, definitions, properties, and laws of logic to make a logical argument |

Supplementary Angles | Two angles whose sum is 180 degrees |

Conclusion | The "then" part of an if-then statement |

Conditional Statement | An If-Then statement |

Linear Pair | Two adjacent angles whose non-common side is the same line |

Segment Bisector | A segment, ray, line, or plane that intersects a segment at its midpoint |

Symmetric Property | If AB=DE, then DE=AB |

Vertical Angles | Two non-adjacent angles whose sides are formed by 2 intersecting lines |

Vertex | The point where two sides on an angle meet |

Congruent Segments | Segments with the same length |

Reflexive Property | AB=AB |

Addition Property | If x = 6, then x + 2 = 6 + 2 |

Subtraction Property | If m = 5, then m - 3 = 5 - 3 |

Multiplication Property | If n = 2, then 3 ∙ n = 3 ∙ 2 |

Division Property | If 8 = t, then 8 ÷ 2 = t ÷ 2 |

Substitution Property | If n = 3 and y = 4∙ n, then y = 4 ∙ 3 |

Linear Pair Postulate | Linear pairs are supplementary. |

Vertical Angles Theorem | Vertical angles are congruent. |

Midpoint | The point on a segment that divides it into two, congruent segments. |

Midpoint Formula | The midpoint of (a,b) and (c,d) is: ( [a+c]/2 , [b+d]/2 ) Average the x-coordinate and average the y-coordinates. |

Created by:
Brit Howard