发明名称 RHOMBUS POLYHEDRON SET FOR TEACHING MATHEMATICS AND GEOMETRY
摘要 PROBLEM TO BE SOLVED: To provide a model for making correlations between rhombus polyhedrons and regular polyhedrons easy to understand since the both are individually explained and their correlations are not touched on. SOLUTION: Transparent plastic rhombus polyhedrons and regular polyhedrons are combined in the order of a regular hexahedron (small)and a regular octahedron, a rhombus dodecahedron, a regular dodecahedron and a regular icosahedron, a rhombus thirty-surface body, and a regular hexahedron (large), and materials of ridge lengths, distances, surface areas, volumes, etc., are attached as a table. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005258375(A) 申请公布日期 2005.09.22
申请号 JP20040114782 申请日期 2004.03.12
申请人 FUJISAWA AKIRA 发明人 FUJISAWA AKIRA
分类号 G09B23/04;(IPC1-7):G09B23/04 主分类号 G09B23/04
代理机构 代理人
主权项
地址