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# 7MAQ4 Geometry Vocab

### Geometry Vocab

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

scale drawing | a proportional drawing of a life sized object |

scale factor | the ratio of any two corresponding sides in a set of similar figures |

angle | a figure formed by two rays or arms that share an endpoint or vertex |

supplementary angles | a pair of adjacent angles whose measurements add up to 180° |

complimentary angles | a pair of adjacent angles whose measurements add up to 90° |

vertical angles | a pair of angles that are not adjacent and are formed by two intersecting lines; vertical angles have the same measure and are congruent |

adjacent angle | a pair of angles that share a common arm and a common vertex; adjacent angles cannot overlap |

quadrilateral | A polygon with FOUR sides, FOUR angles, and whose interior angles add up to 360 degrees. |

construction | the drawing of various geometric figures using only a protractor and a straightedge or a ruler |

obtuse angle | an angle that measures between 91 degrees and 179 degrees |

acute angle | an angle that measures between 1 degree and 89 degrees |

right angle | an angle that measures exactly 90 degrees |

isosceles triangle | A triangle with TWO EQUAL SIDES |

scalene triangle | A triangle with NO EQUAL SIDES |

equilateral triangle | A triangle with THREE EQUAL SIDES |

circumference | the distance around the outside of a circle |

radius | a line segment that connects the center of a circle to any point on the outside of a circle; the distance halfway across a circle; two radii are equal to one diameter |

diameter | a line segment that connects two points on a circle and passes through the center of the circle; the distance across a circle; one diameter is equal to two radii |

triangle | a closed polygon with three sides and three angles and whose interior angles add up to 180° |

area | the measure of the space inside a flat, 2D shape |

prism | a three-dimensional solid with flat faces that has at least two congruent, parallel faces called bases |

cross section | the two-dimensional shape that results from cutting a three-dimensional shape with a plane |

surface area | the sum of the area of all the surfaces on a three-dimensional solid |

net | a two-dimensional pattern that forms a three-dimensional solid when folded |

volume | the amount of space inside a three-dimensional object |

circle | the set of all points in a plane that are the same distance from a given center point |

Created by:
lepressley