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# geometry vocab.

### geometry vocab. words

Term | Definition |
---|---|

Area | the size a surface takes up- measured in square units. |

Volume | the amount of space occupied by a 3D object- measured in cubic units. |

Net | flat shape which can be folded up into a 3D solid. |

Surface Area | total area of the surface of a 3D object- measured in square units. |

Vertex | a point where two or more rays of an angle meet, to adjacent sides of polygon meet, or the edges. |

Triangular pyramid | a solid shape with a polygon as a base and triangular faces that appear to a point (vertex or apex) |

Triangular prism | a polygon a prism with two identical, triangular bases. |

Coordinate plane | a plane containing perpendicular (y and x) interesting at a point called the origin- position is denoted using pairs. |

Parallelogram | a quadrilateral with opposite sides that are parallel and of equal length, and opposite angles that are equal. |

Decomposition | a method of subtraction. |

Rhombus | parallelogram with four equal sides and equal positive angles. |

Quadrilateral | polygon with four sides. |

Rectangular pyramid | a solid shape with a rectangle as a base triangular faces that appear at a point. |

Rectangular prism | a polyhedron- a prism with two identical rectangular bases. |