相信大家已经能够非常熟练地运用直尺和圆规,画出角平分线、中垂线、平行线、等边三角形、正方形等各种几何图形了.令人难以置信的是,把两个简单到不能再简单的作图工具巧妙地配合起来使用,竟然能搭建出如此丰富的几何世界!不过,你是否想过,如果我们把作图工具进一步精简,这些几何作图问题仍然能被解决吗? I believe we have been able to use the ruler and compasses very skillfully to draw a variety of geometric shapes such as angular bisectors, middlings, parallel lines, equilateral triangles, squares, etc. Incredibly, putting two simple Can no longer be a simple mapping tools cleverly used together, even able to build such a rich geometric world! However, have you ever thought, if we further reduce the drawing tools, these geometric mapping problems can still be solved?