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

# T3ny's Stack

### Unit:2 Vocabulary

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

Acute Angle | - an angle whose measure is greater than 0 but less than 90 degrees |

Congruent angles | - two angles where one is the image of the other under a reflection or composite of reflections; written AB |

Coplanar | - within the same plane |

Midpoint | - the point M of where AM = AB |

Perpendicular Lines | - 2 segments, rays, or lines that form a 90 degree angle |

Ray | - a one-dimensional figure that consists of one endpoint A, one point B, all of the points on , and all points for which B is between them and A; written |

Space | - the set of all possible points; made up of infinite planes |

Angle | - the union of 2 rays that have the same endpoint; measured in degrees or radians (trig.); the five types of angles are zero, acute, right, obtuse, and straight |

Congruent segments | •Congruent Segments have the same length. |

counter-example | -a situation in a conditional for which the antecedent is true, but the conditional is false; aka contradiction |

obtuse angle | - an angle whose measure is greater than 90 but less than 180 degrees; see acute angle |

plane | - a two-dimensional group of points that goes on infinitely in all directions; made up of infinite lines |

right angle | -measures 90 degrees |

angle bisector | An angle bisector is a ray that cuts the angle exactly in half, making two equal angles. |

conjecture | is believed to be true but not yet proved. |

inductive reasoning | is the process of arriving at a conclusion based on a set of observations. |

opposite rays | - two rays with a common endpoint that form a line |

point | - a zero-dimensional figure; while usually left undefined |

segment | the set of points consisting of two distinct points and all inbetween them; written |

collinear | - in the same line |

coordinate | - a number that identifies (or helps to identify) a point on a number line (or on a plane, or in space) |

line | - a two-dimensional object that has no endpoints |

parallel lines | Two lines in the same plane which never intersect are called parallel lines |

postulate | - a statement assumed to be true without proof |

skew line | - non-coplanar lines that don't intersect |

Created by:
paz_y_amor