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# OLVFP Gr4 Math 10

### OLVFP Gr 4 Math Ch 10 Vocabulary

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

Acute angle | An angle that has a measure less than a right angle (less than 90*) |

Obtuse angle | An angle that has a measure greater than a right angle. (Greater than 90*) |

Right angle | An angle that forms a square corner and measures 90* |

Straight angle | An angle in which 2 rays point in opposite directions so that they form a line |

Angle | Is formed by 2 rays or line segments that have the same endpoint (vertex) |

Point | An exact location in space |

Line | A straight path of points that continues withOUT end in both directions |

Line segment | A part of a line between 2endpoints |

Ray | Part of a line that has one endpoint and continues without end in 1 direction |

Acute triangle | A triangle with 3 acute angles |

Obtuse triangle | A triangle with one obtuse angle |

Right triangle | A triangle with one right angle |

Intersecting lines | Lines in a plane that cross at exactly one point which forms 4 angles |

Parallel lines | Are lines in a plane that are ALWAYS the same distance apart and NEVER intersect. |

PerpendiculaR lines | Lines in a plane that intersect to form 4 right angles |

Parallelogram | A quadrilateral with 2 pairs of parallel sides & 2 pairs of sides of Equal length |

Trapezoid | A quadrilateral that has At least 1 pair of parallel sides |

Rhombus | A quadrilateral with 2 pairs of parallel sides and 4 sides of equal length |

Rectangle | A quadrilateral with 2 pairs of parallel sides and 2 pairs of sides of equal length AND 4 right angles |

Square | A quadrilateral with 2 pairs of parallel sides and 4 equal lengths AND 4 right angles |

Quadrilateral | A polygon with 4 sides and 4 angles |

Line OF symmetry | Divides a shape into 2 parts that are the SAME size and shape |

Line symmetry | When a shape can be folded about a line and the 2 parts match exactly |

Created by:
jkm1123