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# math games

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

ray | a part of a line that has one end point 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 opposite directions |

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

parallel | the same distance apart at every point |

oblique | 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 nagles |

right angle | an angle that measures 90 degrres |

straight angle | an angle of 180 degrees |

supplementary angle | angles having a sum of 180 |

complementary angles | angles having a sum of 90 |

opposite angle | when 2 lines intersect |

vertical angle | pairs of angles formed by intersecting line . |

polygon | a closed plane figure made of straight lines |

congruent | exactly same size and same shape |

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

equilateral triangle | having all equal sides |

scalene triangle | a triangle with at no equal sides |

acute triangle | a triangle with three acute angles |

obtuse triangle | a triangle with one obtuse angle |

right triangle | a triangle with one right angle |

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

reflex angle | an angle greater than 180 degrees, but 360 degrees |

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