similar figures | | in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs |

indirect measurement | | rectangular prism with six congruent square faces |

pi | | long dimension of any object |

length | | equation that states that two ratios are equivalent |

area | | number of cubic units needed to fill a given space |

corresponding parts | | figures with same shape but not necessarily the same size |

ratio | | parts between two or more objects that are matched |

surface area | | distance around a circle |

volume | | breadth or distance across |

radius | | distance around a polygon |

pythagorean theorem | | ratio of circumference of a circle to the length of its diameter |

cube | | line segment with one endpoint at the center of the circle and endpoint on the circle |

height | | side of polygon |

base | | technique of using similar figures and proportions to find a measure |

polygon | | line segment that passes through the center of a circle and has endpoints on the circle |

width | | number of square units needed to cover a surface |

proportion | | 3-D figure with two parallel, congruent circular bases connected by a curved lateral surface |

diameter | | sum of areas of the faces of a 3-D figure |

cylinder | | drawings used to make a reduction or enlargement of an object |

scale drawings | | closed plane figure formed by three or more line segments that intersect only at their endpoints |

perimeter | | comparison of two quantities by division |

circumference | | perpendicular distance from base to opposite side |