注目の話題: 家出したいです。; まだ10時すぎなのにw; 好きな人に振られてからの行動

science,math and English

No.339　13/11/23 18:17
名無し0 ( 50代 ♂ ) あ+あ-

【Understanding of cubic figures with experiences】

If using a compass and ruler,we'll be able to draw an equilaternal pentagon so as to make the equilaternal dodecahedron 正十二面体,if using a protractor 分度器,it'll be more useful.👍

The author of my crib recommend we should try to draw various figures as developments of cubic figures which have frequently been used for teaching material,or an entrance examination in junior high school.🐮

He emphasized that our making effort of trial and error and looking for each proper development for cubic figures.Whether or not we can list all the developments doesn't matter,he insisted that we should do it in his book.🐷

I've wanted to express everything in English,but I find it hard to do it without its illustrations.It's hard to understand,I'm sure.Therefore I'm forced to omit to express shapes of the developments,though I find it important to express the developments.😚

To my sorrow,I can't do it only with my poor English here,without using any illustrations.😳