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# grid & polygons

### 5.G.3&4

Term | Definition |
---|---|

rectangle | A parallelogram with four right angles |

rhombus | A parallelogram with all sides the same length |

square | A rectangle with all sides the same length |

generalization | A general statement Example: A generalization about rectangles applies to all rectangles. |

trapezoid | A quadrilateral that has exactly one pair of parallel sides |

obtuse triangle | A triangle in which one angle is an obtuse angle |

acute triangle | A triangle whose angles are all acute angles |

right triangle | A triangle in which one angle is a right angle |

scalene triangle | A triangle in which no sides have the same length |

isosceles triangle | A triangle with two sides of the same length |

equilateral triangle | A triangle whose sides all have the same length |

octagon | A polygon with 8 sides |

hexagon | A polygon with 6 sides |

pentagon | A polygon with 5 sides |

quadrilateral | A polygon with 4 sides |

triangle | A polygon with 3 sides |

regular polygon | A polygon that has sides of equal length and angles of equal measure |

polygon | A closed plane gure made up of line segments |

coordinate grid | A grid that makes it easy to locate points on a plane by using an ordered pair of numbers. |

x-axis | The horizontal axis in a graph or coordinate grid. |

y-axis | The vertical axis in a graph or coordinate grid. |

origin | The point at which the x-axis and the y-axis of a coordinate plane intersect. The origin is represented by the ordered pair (0, 0). |

ordered pair | A pair of numbers used to locate a point on a coordinate grid. |

x-coordinate | The first number in an ordered pair which names the distance from the origin along the x-axis. |

y-coordinate | The second number in an ordered pair which names the distance from the origin along the y-axis. |

heptagon | A polygon with 7 sides |

Created by:
buchananwle