A | B |

angle | 2 rays with a common end point |

square | 4 sided polygon with equal sides and right angles |

rhombus | 4 sided polygon with 4 equal sides |

perpendicular | 2 lines that intersect at right angles |

acute angle | angle that measures less than 90 degrees |

diameter | chord that intersects the center of the circle |

chord | line that connects 2 points on the circle |

parallelogram | quadrilateral with opposite sides parallel and equal |

trapezoid | 4 sided polygon with 1 pair of parallel lines |

circle | set of points equidistant from the center |