英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

icosahedron    
n. 二十面体

二十面体

icosahedron
n 1: any polyhedron having twenty plane faces

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Icosahedron - Wikipedia
    In geometry, an icosahedron ( ˌaɪkɒsəˈhiːdrən, - kə -, - koʊ - or aɪˌkɒsəˈhiːdrən [1]) is a polyhedron with 20 faces The name comes from Ancient Greek εἴκοσι (eíkosi) 'twenty' and ἕδρα (hédra) 'seat' The plural can be either "icosahedra" ( - drə ) or "icosahedrons"
  • Spinning Icosahedron - Math is Fun
    For a regular icosahedron (where all faces are equilateral triangles): The name icosahedron comes from the Greek icosa- meaning 20, because it is a polyhedron with 20 faces When we have more than one icosahedron they are called icosahedra
  • Icosahedron
    The icosahedron's definition is derived from the ancient Greek words Icos (eíkosi) meaning 'twenty' and hedra (hédra) meaning 'seat' It is one of the five platonic solids with equilateral triangular faces
  • Icosahedron - Math. net
    What is an icosahedron An icosahedron is a three-dimensional figure made up of only polygons One real life icosahedron example is a 20-sided die, also referred to as D20: The 20-sided die above is an example of a regular icosahedron, since all of its faces are made up of 20 equilateral triangles
  • Regular Icosahedron -- from Wolfram MathWorld
    The regular icosahedron, often simply called "the" icosahedron, is the regular polyhedron and Platonic solid illustrated above having 12 polyhedron vertices, 30 polyhedron edges, and 20 equivalent equilateral triangle faces, 20 {3}
  • Icosahedron – The Geometry of Thinking
    The icosahedron is distinguished from the other regular polyhedra in that it has an irrational volume both in tetrahedra and cubes Its isolation is further reinforced by its axes of spin and the 31 great circles they describe
  • Icosahedron - A regular polyhedron with 20 faces - One of the platonic . . .
    An icosahedron is a regular polyhedron that has 20 faces All the faces are equilateral triangles and are all congruent, that is, all the same size It is one of the five Platonic solids
  • Icosahedron | Definition, Examples, Parts, Properties Nets
    An icosahedron has 30 edges—the angle between the edges of an icosahedron measures 60° The corners of an icosahedron, where the faces meet, are called vertices
  • The Icosahedron - kjmaclean. com
    The icosahedron is built around the pentagon and the golden section At first glance this may seem absurd, since every face of the icosahedron is an equilateral triangle
  • Regular icosahedron - Wikipedia
    The regular icosahedron (or simply icosahedron) is a convex polyhedron that can be constructed from pentagonal antiprism by attaching two pentagonal pyramids with regular faces to each of its pentagonal faces, or by putting points onto the cube





中文字典-英文字典  2005-2009