Ruler | | device used to measure angles |

Ray | | extends in one dimension, usually represented by arrowheads |

Protractor | | device used to measure surface areas |

Point | | where two rays come together to form an angle |

Intersecting Lines | | extends in two dimensions, represented by a shape that looks like a table top |

Vertex | | angle of measure |

Parallel Lines | | two lines that intersect to form a right angle |

Straight Angle | | lines that do not toch each other but run right beside each other |

Segment | | an angle with a measure equal to 180 degrees |

Midpoint | | distance between two points on a line |

Perpundicular Lines | | consists of two different rays tht have the same initial point |

Plane | | the point that divides or bisects a segment into two congruent segment |

Degree | | one or more sets of lines that cross each other |

Line | | part of a line that consists of a point |

Right Angle | | an angle with a measure equal to 90 degrees |

Angle | | represented by a small dot |