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# AnielMath8Unit1A

### Math 8 Unit1A Vocabulary

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

Clockwise | Turning in the same way that the hour or minute hand goes around a clock. |

Counterclockwise | Turning in the opposite way to the way that the hour or minute hand goes around a clock. |

Reflection | Takes every point of the figure to a point directly opposite to it on the other side of the line and the same distance from the line. |

Rotation | It has a center, an angle, and a direction. It moves every point of a figure in a circle around the center, in the direction specified, and and for a distance specified by the angle. |

Translation | Move every point in a figure a given distance in a given direction. |

Transformation | A translation, rotation, reflection, or dilation, or a combination of these. |

Sequence of Transformations | A set of translations, rotations, reflections, and dilations performed in a particular order on a geometric figure, resulting in a final figure. |

Rigid Transformations | A sequence of translations, rotations, and reflections that preserve the measurements of the shape. |

Corresponding | If a part of the first figure matches up with the same part of the image. |

Vertical Angles | A pair of angles that are across from each other at the point where two lines intersect. The angles are equal. |

Alternate Interior Angles | If 2 interior angles lie on opposite sides of the transversal. |

Transversal | A line that cuts across two parallel lines, intersecting each one. |

Straight Angle | If the two rays that make an angle form a straight line. |

Image | The moved object. |

Congruent | If there is a rigid transformation that moves the first figure so that it fits exactly over the second figure. |

Created by:
anielam