Search All »
Math
»
Geometry Ch 1

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

# Geometry Ch 1

### Stepp's PH Geometry Chapter 1 - Tools of Geometry

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

Point | A location represented as a small dot, named by a capital letter. |

Space | Space is defined as the set of all points |

Line | A series of points that extends in two opposite directions without end. |

Collinear points | Points that lie on the same line |

Plane | A flat surface that has no thickness and extends in all directions without end. |

Coplanar | Points and lines in the same plane. |

Postulate/Axiom | An accepted statement or fact. |

Through any two points there is exactly ___line. | one |

Postulate If two lines intersect, then they intersect in exactly one ____. | point |

Postulate If two planes intersect, then they intersect in exactly one ___ | line |

Postulate Through any three noncollinear points there is exactly one ___ | plane |

Segment | The part of a line consisting of two endpoints and all points between them. |

Ray | The part of a line consisting of one endpoint and all the points on one side of the endpoint. |

Opposite Rays | Two collinear rays with the same endpoint; opposite rays always form a line. |

Parallel Lines | Coplanar lines that do not intersect. |

Skew Lines | Skew lines are noncoplanar; therefore, they are not parallel and do not intersect. |

Parallel Planes | Planes that do not intersect, and are not skew. |

Ruler Postulate | every point has a name. |

Congruent Segments | Two segments with the same length are congruent (≡) segments. |

Segment Addition Potulate | part + part = whole |

Midpoint | A point that divides a segment in two congruent segments. |

Angle | Two rays with the same endpoint (vertex). |

Protractor Postulate (Postulate 1.7) Any angle can have only ___ measure at a time | one |

Acute Angle | 0 < X < 90 |

Right Angle | X = 90 |

Obtuse Angle | 90 < X < 180 |

Straight Angle | X = 180 |

Angle Addition Postulate | part + part = whole |

Perpendicular Lines | Two lines that intersect to form right angles. |

Perpendicular Bisector | A line, segment, or ray that is perpendicular to the segment at its midpoint, |

Angle Bisector | A ray that divides an angle into two congruent angles. Its endpoint is at the vertex. |

The Pythagorean Thm is used in the ___ | The Distance Formula |

The Midpoint Formula | (average x, average y) |

Bisectors always make | twins |

Perpendicular means | at a right angle |

If a two lines do not intersect, then they must be ___ or ___ to each other | skew or parallel |

You can name a line by using any ___ | 2 points on the line |

When naming an angle, the ____ must be in the middle | vertex |

Numbers can be ____ but figures can be ____ | equal , congruent |

A compass is used to copy ____ | distance |

The three undefined terms of Geometry are ___ | Point, line, and plane |

2l + 2w = ____ | Perimeter of a rectangle |

Created by:
criswell216