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

# Math Vocabulary

### Chapter 19, Part 2

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

intersecting lines | lines that cross each other at exactly one point |

parallel lines | lines in the same plane that never intersect and are always the same distance apart |

perpendicular lines | two lines that intersect to form four right angles |

polygon | a closed plane figure formed by three or more straight sides that are line segments |

triangle | a polygon with three sides and three angles |

quadrilateral | a polygon with four sides and four angles |

pentagon | a polygon with five sides and five angles |

hexagon | a polygon with six sides and six angles |

octagon | a polygon with eight sides and eight angles |

decagon | a polygon with ten sides and ten angles |

regular polygon | a polygon that has sides that are the same length |

parallelogram | a quadrilateral whose opposite sides are parallel and equal, or congruent |

rhombus | a parallelogram with four equal, or congruent sides |

trapezoid | a quadrilateral with exactly one pair of parallel sides |

equilateral triangle | a triangle with three equal sides |

isosceles triangle | a triangle with two equal sides |

scalene triangle | a triangle with no equal sides |

right triangle | a triangle with one right angle |

acute triangle | a triangle with three acute angles |

obtuse triangle | a triangle with one obtuse angle |

Created by:
RossCoops3