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# math

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

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

angle | a figure formed by two rays or line segments with a common end point. |

line | a straight path that goes on forever in both directions. |

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

parallel | the same distance apart at every point. |

oblique | lines that are not parallel or perpendicular. |

intersect | to cut or divide by passing through or across. |

protractor | a tool used to measure angles. |

degree | a unit for measuring angles. |

right angle | an angle that measures 90 degrees. |

straight angle | an angle of 180 degrees |

supplementary angles | angles having a sum of 180 degrees |

complimentary angles | angles that have a sum of 90 degrees |

opposite angle | when two lines intersect |

vertical angle | pairs of opposite angles formed by two intersecting lines. |

polygon | a closed plane figure with sides made of straight line segments. |

congruent | exact same size exact same shape. |

isosceles triangle | a triangle with at least 2 congruent sides. |

equalateral | having all equal sides. |

scalene triangle | a triangle with no congruent sides. |

acute triangle | a triangle with three acute sides. |

obtuse triangle | a triangle with one obtuse angle. |

right triangle | a triangle with a right angle |

right trapizoid | a trapezoid with at least one right angle. |

circle | a shape that is round. |

reflexangle | an angle greater than 180 degrees |

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