近几年各地中考加强了对尺规作图的考查,出现各类新题型,让人耳目一新。但在解决此类问题时,我们却不易看出求解的方向和思路。鉴于此,笔者结合具体案例浅谈此类题的一般做法。1问题如图1,长方形纸片上有两条线段a、b,其延长后的交点在长方形外,如果仅限于在长方形内尺规作图,如何作出延长a、b相交后所成角的平分线所在的直线。 In recent years, the examinations in various places have strengthened the examination of the rules and regulations of the rules and regulations and the emergence of various new kinds of inscriptions, making people find everything fresh and new. However, when solving such problems, we can not easily see the directions and ideas for solution. In view of this, the author with specific cases on the general approach to such questions. 1 The problem is shown in Figure 1. There are two line segments a and b on the rectangle paper. If the extended intersection point is outside the rectangle, how to make the bisector of the angle formed after the intersection of a and b extend if only for the rectangle ruler The line where the line is.