“polyhedron”的概念、定义、习题解题方法及翻译-数学辞典

单词

polyhedron

释义

polyhedron

(polyhedra) A solid figure bounded by some number of plane polygonal faces. It is often assumed that a polyhedron is convex, unlike the one in the figure. Thus, a convex polyhedron is a finite region bounded by some number of planes, in the sense that the polyhedron lies entirely on one side of each plane. Each edge of the polyhedron joins two vertices, and each edge is the common edge of two faces.

A concave (non-convex) polyhedron

The numbers of vertices, edges, and faces of a convex polyhedron are related by Euler's Theorem (for polyhedra).

Certain polyhedra are called regular, and these are the five Platonic solids; the thirteen Archimedean solids are semi-regular. See polytope.

随便看

数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。