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# Math 8 Vocabulary

### 27 pt Quiz Review

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

ratio | the comparison of two values |

proportion | mathematical sentence in which two ratios are set equal to each other |

similar | in proportion |

variable | letter used to represent an unknown value |

exponent | number used to show how many times another number (base) is used to multiply by itself |

coefficient | integer or rational number that is multiplied by a variable |

like terms | terms that have the same variables raised to the same powers |

monomial | number, a variable, or the product of a number and one or more variables |

binomial | polynomial with two terms |

trinomial | polynomial with three terms |

polynomial | algebraic expression that is the sum or difference of terms |

additive inverse | opposite of a number |

integers | set of whole numbers and their opposites |

absolute value | number of units (distance) from zero |

congruent | equal measures |

parallel | constant distance apart, never intersecting |

perpendicular | intersecting at a right angle |

acute angle | an angle whose measure is greater than 0 degrees and less than 90 degrees |

obtuse angle | an angle whose measure is greater than 90 degrees and less than 180 degrees |

right angle | an angle whose measure is equal to 90 degrees |

adjacent | next to |

vertical angles | two non-adjacent angles formed from two intersecting lines, are opposite each other across a common vertex, are congruent to each other |

corresponding angles | a pair of non-adjacent angles, on the same side of the transversal line and in the same position (above or below) their parallel line |

alternate interior angles | a pair of non-adjacent angles, both inside a pair of parallel lines and on opposite sides of the transversal line, are congruent to each other |

alternate exterior angles | a pair of non-adjacent angles, both outside a pair of parallel lines and on opposite sides of the transversal line, are congruent to each other |

complementary angles | two angles whose measures have a sum equal to 90 degrees |

supplementary angles | two angles whose measures have a sum equal to 180 degrees |

Created by:
jslowinski