|
|||||
|
|
| Can You Tell Without Measuring? | |
| 作者姓名： | 尹玉成 孟国凯 |
| 作者单位： | 天津市咸水沽一中，金华五中 |
| 摘 要： | Here is a right angled triangle.The two shorter sides are three and fourunits long.How many units long is the longest side?Can you tell without measuring?How?About 2500 years ago(500 B. C.)a great Greek, |
| 本文献已被 CNKI 等数据库收录！ | |