在生产中废弃的三角形边角料比比皆是,如何在这些边角料中截取最大正方形使之得到二次利用,这不仅是一个值得关切和重视的数学问题,也是节约资源保护环境的大问题.教材中以例题的形式讲了锐角三角形余料中截取正方形,意在重视培养和增强学生用“数学”来节约资源,用“数学”保护环境的意识.从有关研究的资料来看,在确定的锐角三角形和直角三 Abandoned in the production of triangular trim everywhere, how to cut the largest square in these trim so that the secondary use, which is not only a matter of concern and attention to mathematics, but also save resources to protect the environment, the big problem. In the form of the example, the square is taken from the remaining part of the acute triangle, which is intended to cultivate and enhance the students' resources to conserve resources by using “math”, and to protect the environment with “mathematics.” From the data of relevant research, Determined acute triangle and right angle three