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# Unit 1 Quiz 1

### geometry definitions

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

Line | A geometric figure that extends in one dimension and is represented by a straight line with arrowheads on each end. |

Intersection | The set of all point that are created with two geometric figures meet. |

Midpoint | The point that divides, or bisects, a segment into two congruent segments. |

Plane | A geometric figure that extends in two dimensions. It is usually represented by a shape that looks like a tabletop or a wall. |

Obtuse Angle | Any angle whose measure is greater than 90 but less than 180. |

Supplementary Angles | Two angles whose sum equals 180 degrees. |

Ray | A type of line that consists of an initial point and all points on the line that extends in one direction. |

Congruent Segments | Two segments that have the same length. |

Segment | A type of line that consists of two endpoints and all the points on the line that lie between the two endpoints. |

Colinear Points | Two segments that have the same length. |

Acute Angle | Any angle whose measure is between 0 and 90 degrees. |

Segment Bisector | Any geometric figure that intersects a segment at its midpoint. |

Construction | A geometric drawing that uses a limited set of tools, usually a compass and a straighthead. |

Vertical Angles | Two angles that are created by two intersecting lines. These angles must share only a vertex and be congruent to one another. |

Distance Formula | square root [(delta x)^2 + (delta y)^2] |

Midpoint Formula | (Average of x's, Average of y's) |

Complementary Angles | Any two angles that add to exactly 90 degrees. Complementary angles do not need to be adjacent. |

Created by:
mrs.gardner