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# Unit 4 Vocabulary.

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

ratio | a comparison of two numbers using division; the ratio of a and b where b does not equal 0 can be written as a to b, a:b, or a/b |

proportion | an equation that states that two ratios are equivalent: a/b=c/d where b and d do not equal 0 |

cross product | in a proportion, a cross product is the product of the numerator of one ratio and the denominator of the other; they are equal |

literal equation | an equation in which letters are used to replace the coefficients and constants of another equation |

consecutive integers | integers in counting order |

triangle | a polygon with three sides and three angles |

acute angle | an angle that measures less than 90 degrees |

equilateral triangle | a triangle that has all the sides the same length and all of the angles the same measure |

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

isosceles triangle | a tringle with at least two angles having the same measure and at least two of the sides having the same length |

obtuse triangle | a triangle with one angle measure of more than 90 degrees |

right triangle | a triangle with one angle measure of 90 degrees |

supplementary angles | the sum of two angles is 180 degrees |

complementary angles | the sum of two angles is 90 degrees |

Created by:
rgoepner