# Geom Vocab 5

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kaylalemons's
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2015-11-03 02:36

## Section 1

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

the point inside of a circle that is equidistant from every point on the circle | center of a circle |

set of points in a plane that are a fixed distance from a given point called the center of the circle | circle |

distance around a circle | circumference |

circles that have congruent radii | congruent circles |

set of all points inside a circle | interior of a circle |

the ratio of the circumference of a circle to its diameter, denoted by the greek letter (pie) | Pi |

segment whose endpoints are the center circle and a point on the circle; also the length of a circle | radius of a circle |

argument that uses logic to show that a conclusion is true | proof |

## Section 2

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

triangles whose corresponding sides and angles are congruent | congruent triangles |

angles in the same relative position in two different polygons with the same number of angles | corresponding angles of polygons |

sides in the same relative position in two different polygons with the same number of sides | corresponding sides of polygons |

"corresponding parts of congruent triangles are congruent"- can be justified in a proof after two triangles are proven congruent | CPCTC |

property of triangles that states that if the side lengths of a triangle are fixed, the triangle can have only one size and shape | triangle rigidly |

## Section 3

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

two arcs of the same circle that intersect at exactly one point | adjacent arcs |

unbroken part of the a circle consisting of two points on the circle, called the endpoints, and all the points on the circle between them | arc |

angle whose vertex is the center of a circle | central angle of a circle |

areas that are in the same or congruent circles and have the same measure | congruent arcs |

arc of a circle whose points are on or in the exterior of a central angle | major arc |

difference of 360 degrees and the measure of the associated minor arc | measure of a major arc |

measure of its central angle | measure of a minor arc |

arc of a circle whose points are on or in the interior of a central angle | minor arc |

arc of a circle whose endpoints lie on a diameter | semicircle |

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