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# Math Vocab Geo/Graph

### March 16-27

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

acute angle | An angle whose measure is less than 90 degrees. |

angle | Two rays that have the same endpoint. |

average | The number found by adding all the data and dividing by the number of data. Also called the mean. |

bar graph | A graph that uses bars to show data. |

circle graph | A graph in the shape of a circle that shows what part of the whole each portion of the data represents. |

cone | A solid with one circular base, the points on the circle are joined to one point outside the base. |

congruent figures | Figures that have the same size and shape. |

cylinder | A solid figure with two circular bases that are congruent and parallel. |

data | Collected information. |

expanded form | A way to write a number that shows the place value of each digit. |

hexagon | A polygon with 6 sides. |

intersecting lines | Lines that pass through the same point. |

isosceles triangle | A triangle with at least two sides of the same length. |

line | A set of points that goes on forever in two directions. |

line graph | A graph that connects points to show how data change over time. |

line of symmetry | The fold line in a symmetric figure |

line segment | Part of a line having two endpoints |

mean | The number found by adding all the data and dividing by the number of data. Often called the average. |

median | The middle number in an ordered set of data. |

mode | The data value that occurs most often in a set of data. |

obtuse angle | An angle whose measure is between 90 degrees and 180 degrees. |

octagon | A polygon with 8 sides |

parallel lines | Lines that never cross and are the same distance apart. |

parallelogram | A quadrilateral with both pairs of opposite sides parallel. |

pentagon | A polygon with 5 sides |

perpendicular lines | Two lines that intersect to form right angles. |

pictograph | A chart using pictures or symbols to compare data that can be counted. |

plane | An endless flat surface. |

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

pyramid | A solid figure with a base that is a polygon and whose faces are triangles with a common vertex. |

quadrilateral | A polygon with 4 sides. |

ray | Part of a line that has one endpoint and extends forever in only one direction |

rectangle | A parallelogram with 4 right angles. |

rhombus | A parallelogram with all sides the same length |

right angle | An angle whose measure is 90 degrees. |

sphere | A solid figure with all points the same distance from the center point. |

square | A rectangle with all sides the same length. |

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

triangle | A polygon with 3 sides |

Created by:
cdixon