下面三道题中考试题中的压轴题知识含量高,解法巧妙,读后对所学知识加深理解,推荐给同学们学习.例1如图1,在矩形ABCD中,点P是边AD上的动点,连结BP,线段BP的垂直平分线交边BC于点Q,垂足为点M,连结QP.已知AD=13,AB=5,设AP=x,BQ=y. The following three questions in the exam questions of the Finale of high-level knowledge, clever solution, after reading the knowledge to deepen understanding, recommended to the students to learn.Example 1 Figure 1, in the rectangle ABCD, the point P is the edge AD The moving point, connecting BP, the vertical bisector of the line segment BP intersecting point BC at point Q, vertical foot as point M, connecting QP. It is known that AD = 13 and AB = 5. Let AP = x and BQ = y.