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# Stack #167173

### 5th grade math vocabulary

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

acute angle | an angle with a measure of less than 90 degrees |

obtuse angle | an angle with a measure greater than 90 degrees and less than 180 degrees |

horizontal axis | a reference line from which distances or angles are measured horizontally in a coordinate system |

vertical axis | a reference line from which distances or angles are measured vertically in a coordinate system |

base | the side of a polygon that contains one end of hte altitude |

composite | a number that has more than two factors |

cube | 1) a regular solid with six square faces 2) the third power of a number |

determine | to settle or decide by an authoritative or conclusive decision |

decompose | to separate into components, parts, or basic elements |

dimension | the lengths of sides of a geometric figure |

divisible | one number is divisible by another number if their quotient is an integer |

evaluate | to find the value of a mathematical expression |

greatest common factor (GCF) | the largest number that divides evenly into two or more numbers |

height | the length of a perpendicular line segment from a vertex to the opposite side of a plane figure |

least common multiple (LCM) | the smallest common multiple of a set of two or more numbers |

line graph | a graph that uses a line to show how data change over time |

mean | a number found by dividing the sum of two or more addends by the number of addends, often referred to as the average |

prime number | a number that has exactly two different positive factors, itself and 1 |

origin | the intersection of the x and y axes in a coordinate plane, described by the ordered pair (0,0) |

scale (axis) | a system of marks at fixed intervals used in measurement or graphing |

symmetry | when one half of an image is the mirror image of the other half |

thousandths | the value of a digit three places to the right of the decimal |

equilateral triangle | a triangle with all sides the same length |

isosceles triangle | a triangle that has at least 2 congruent sides |

obtuse triangle | a triangle whose largest angle measures greater than 90 degrees |

right triangle | a triangle that has one 90 degree angle |

scalene triangle | a triangle that has no congruent sides |

value | a numerical quantity measured or assigned or computed |

variable | 1) a quantity that can have different values 2) a symbol that can stand for a variable |

volume | the number of cubic units it takes to fill a solid |

Created by:
tcarstens
on 2008-10-22