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

# Terms of Geometry

### Match the Terms!

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

reflection | A transformation across a line. Example: Mirror-like |

postulate | An automatically true statement without proof; axiom |

True or False: All rays continue forever in multiple direction | False: only one direction it continues forever |

A_____________ is a straight path that has no thickness and extends forever. | line |

_______________________ are two rays that have a common endpoint and form a line. | Opposite rays |

A point is represented by a _____. | dot |

Points, lines, and planes are __________________. | undefined terms |

True or False: noncoplanar points lie on the same plane. | False: coplanar points lie on the same plane |

A segment is another name for a _______________. | line segment |

True or False: collinear points lie on the same line. | True |

coordinate | A point corresponding to one and only one number on the ruler |

The distance between coordinates is called ________. | length |

True or False: Congruent segments are segments that have the same length. | True |

A ____________ is a way of creating a figure that is more precise. | construction |

Two rays with a common endpoint have a ________. | vertex |

Translation | slide |

Reflecting across the x-axis | (x,y)>(x,-y) |

Reflecting across the y-axis | (x,y)>(-x,y) |

Reflecting across y=x | (x,y)>(y,x) |

The method for translation | by a vector Ex: (x,y)>(x+a,y+b) |

What angle do you rotate the figure if the method is (x,y)>(-x,-y)? | 180 degrees |

What is the method for rotating a figure 90 degrees? | (x,y)>(-y,x) |

True or False: Plane symmetry only goes for 2-D figures. | False: 3-D |

True or False: If planes intersect they only do in a straight line. | True |

What are 2 real world examples of two planes intersecting each other? | A wall, table, etc. |

Created by:
Twisted Hours97