click below

click below

Normal Size Small Size show me how

# whatever

### some stack

VOCAB words | definition |
---|---|

Chord | a segment whose endpoints lie on a circle |

Diameter | a chord that contains the center of a circle |

secant of a circle | a line that contains a chord |

tangent to a circle | a line that lies n the plane of a circle and that intersects the circle at exactly one point (point of tangency) |

circle | the set of all points in a plane at a given distance from a given point in the plane |

radius | a segment from a point on a circle or a sphere to the center |

congruent circles | circle with the same radius |

concentric circles | circles that lie in the same plane that share the same center |

inscribed angle | angle whose vertex lies on a circle and whose sides contain chords of the circle |

central angle | angle whose vertex is the center of a circle and whose sides contain radii of the circle |

circumference | distance around a circle, that is, the perimeter of a circle |

arc length | a fraction of the circumference of a circle defined by the arc. |

arc of a circle | two points on a circle and the continuous part of the circle between the two points |

semi-circle | an arc of a circle whose endpoints are the endpoints of a diameter |

minor arc | an arc of a circle whose length is less than the length of a semi-circle of the circle |

major arc | an arc of a circle whose length is greater than the length of a semi-circle of the circle |