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# 3DSolids

### Bilingual Maths English

Answer | |
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A solid that is bounded by polygons, called faces, that enclose a single region of space. | Polyhedron |

The polygons that enclose the polyhedron | Face |

A line segment formed by the intersection of two faces of a polyhedron. | Edge |

A point where three or more edges of a polyhedron meet. | Vertex |

A polyhedron whose faces are all congruent regular polygons. | Regular Polyhedron |

A polyhedron with four faces. | Tetrahedron |

A polyhedron with eight faces. | Octahedron |

A polyhedron with twelve faces. | Dodecahedron |

A polyhedron with twenty faces. | Icosahedron |

A polyhedron with two congruent faces, called bases, that lie in parallel planes. The other faces, called lateral faces, are parallelogram formed by connecting the corresponding vertices of the bases. | Prism |

On a prism, these are the faces that have only TWO of the same polygonal shape. On a pyramid, these are the faces that have only ONE polygonal shape. | Bases |

These are the faces that connect the two bases. | Lateral Faces |

The sum of the areas of its faces. | Surface Area of a Polyhedron |

A two-dimensional representation of all the faces of a polyhedron. | Net |

A solid with congruent circular bases that lie in parallel planes. | Cylinder |

A polyhedron in which the bases is a polygon and the lateral faces are triangles with a common vertex. | Pyramid |

A solid with a circular base and a vertex that is not in the same plane as the base. | Cone |

The locus of points in space that are a given distance form a point, called the center of the sphere. | Sphere |

The point that is equidistant to every point on the sphere. | Center of a Sphere |

A segment from the center of a sphere to a point on the sphere. | Radius of a Sphere |

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