今天的作业中有这样一道思考题:在一个平行四边形里画一条线段,把它分割成相等的两部分,有几种分法?我一读题目,心想:这有什么好思考的,太简单了!便不假思索地动手操作起来:画对角线就把这个平行四边形分成了相等的两部分,共有两种分法。我急切地把作业展示给妈妈,让妈妈一起分享我的“战果”!谁料妈妈眉头一皱,道:“有两种分法?我看不止吧?”我又把平行四边形仔细看了看,有了,还可以分成两个完全一样的梯形,这 There is such a question in today’s homework: how to draw a line in a parallelogram and split it into two equal parts? There are several sub-methods? I read the title, I wondered: What is this good thinking, too Simple! Operate without hesitation: draw the diagonal to put the parallelogram is divided into two equal parts, there are two kinds of points. I am eager to show homework to the mother, let my mother share my “battle fruit”! Who expected my mother frowned and said: “There are two sub-methods? I see more than that?” I again the parallelogram Carefully looked, with, can also be divided into two exactly the same trapezoidal, this