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# r-p

### geometery terms

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

Point | A location in space - a dot on a piece of paper |

Line | Connects two points and continues forever in both directions |

Line Segment | Two endpoints connected by a set of points making a segment. |

Perpendicular Lines | Line Segments that intersect (cross) at an angle of 90° |

Parallel Lines | Line segements that never intersect.stay the same distance apart |

Right Angle | An angle that measures 90° |

Acute Angle | An angle that measures less than 90° |

Obtuse Angle | An angle that measures more than 90° |

Vertex | Point at which two line segments intersect (forming an angle) |

Scalene Triangle | A triangle with all three sides with different lengths |

Isosceles Triangle | A triangle with two equal length sides |

Equilateral Triangle | A traingle with all three sides of equal length |

Radius | Distance from center of a circle to the edge |

Diameter | A line segment through a circle passing through the circle's center |

Chord | A line segment joining two points on a curve. |

Arc | Part of a curve- outside of the circle |

Ray | Starts at an endpoint and continues in one direction forever |

quadrilateral | 4 sided polygon |

pentagon | 5 sided polygon |

hexagon | 6 sided polygon |

heptagon | 7 sided polygon |

octagon | 8 sided polygon |

nonogon | 9 sided polygon |

decagon | 10 sided polygon |

degrees in a triangle | 180 |

degrees in a quadrilateral | 360 |

degrees in a pentagon | 540 |

degrees in a hexagon | 720 |

degrees in a heptagon | 900 |

degrees in a octagon | 1080 |

two angles in a triangle are 39 and 29, what is the measure of the third angle? | 112 |

Created by:
anitabrown