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# Math Words #3

### Key Terms 3

Vocabulary Word | Definition |
---|---|

angle | a figure formed by two rays that meet at a common endpoint |

denominator | the number below the bar in a fraction that tells how many parts are in a whole |

composite number | a number having more than two factors |

greatest common factor | the greatest factor that two or more numbers have in common |

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

least common multiple | the least number, other than zero, that is a common multiple of two or more numbers |

prime number | a number that has exactly two factors; 1 and itself |

range | the difference between the greatest number and the least number in a set of data |

right triangle | a triangle that has a right angle |

ray | a part of a line; it begins at one endpoint and extends forever in done direction |

numerator | the number above the bar in a fraction that tells how many equal parts of the whole are being considered |

edge | the line made where two or more faces of a solid figure meet |

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

line | a straight path in a plane, extending in both directions with no endpoints |

line segment | a part of a line between two endpoints |

perimeter | the distance around a closed plane figure |

vertex | the point where two or more rays meet, the point where two sides meet, or the point where two edges meet |