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# MC Ch13 Vocab

### Gr5 Math Vocab

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

acute angle | an angle with a measure between 0º and 90º |

angle | two RAYS with a common endpoint |

CONGRUENT line segments | line segments that have EXACTLY the same LENGTH |

degree | a unit for measuring angles |

EQUILATERAL triangle | a triangle with three CONGRUENT sides and angles |

image | the result after a geometric figure has been TRANSFORMED |

INTERSECTING lines | LINES that meet or CROSS at a common POINT |

ISOSCELES triangle | a triangle with at least 2 sides the SAME length and 2 EQUAL angles |

obtuse angle | an angle that measures between 90º and 180º |

PARALLEL lines | lines that are the same distance apart; DO NOT INTERSECT |

parallelogram | a QUADRILATERAL with four sides in which each pair of OPPOSITE sides are PARALLEL and CONGRUENT |

PERPENDICULAR lines | LINES that cross each other at RIGHT ANGLES |

quadrilateral | a POLYGON that has 4 sides and 4 angles |

rectangle | a QUADRILATERAL with four RIGHT angles; OPPOSITE sides are EQUAL and PARALLEL |

REFLECTION | a figure that is FLIPPED over a line to create a MIRROR image of that figure |

rhombus | a PARALLELOGRAM with four CONGRUENT sides |

right angle | an angle with a measure of 90º |

ROTATION | TURNING a figure about a fixed point |

SCALENE triangle | a triangle with NO CONGRUENT SIDES OR ANGLES |

square | a rectangle with four CONGRUENT SIDES |

TRANSFORMATION | a movement of a figure that does NOT CHANGE the SIZE or SHAPE of that figure |

TRANSLATION | SLIDING a figure in a STRAIGHT LINE horizontally, vertically, or diagonally |

trapezoid | a QUADRILATERAL with EXACTLY one pair of PARALLEL sides |

Created by:
bcarvajal