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# unit 4 math

### Ms.High

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

ray | a part of a line that has one endpoint and extends without end in one direction |

angle | a figure formed by two rays or line segments by endpoint. |

line | a straight path that goes on forever on opposite sides |

perpendicular | lines ,line ,segments or rays are perpendicular if they form right angles. |

parallel | the same distancee apart at every point. |

olique | lines that are not paralell or perpendicular. |

intersect | to cut or divide by passing through |

protractor | a tool that is used to measure angles |

degree | a unit for measuring angles. |

right angle | a angle that measures 90 o |

straight angle | angle of 180 |

supplementary angles | if the sum of an abgle is 180 |

complementary angles | if the sum of the angle is 90 |

polygon | a closed plane figure |

congruent | same size same congrount |

isosceles triangle | two congrount sides on a triangle |

equilateral triangle | all eqaul sides |

scalene triangle | no sides are eqaul sides |

acute triangle | three acute sides on a triangle |

obtuse triangle | a triangle with one obtuse side |

right triangle | a triangle with with a 90 degree angle. |

right trapezoid | a trapezoid with aleast 1 right angle |

circle | plane figure that forms a closed path so that all the the points on the path are the same distance from a point the center |

reflex angle | an angle that is greater than 180 |

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