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如图1,△ABC中内接矩形EFGH,只要已知△ABC的边BC=a和BC边上的高AD=h,就能找到矩形两邻边EF、EH的关系,从而解决矩形EFGH的周长和面积问题.此类问题的解题方法有规律:
As shown in Fig. 1, the rectangle EFGH is inscribed in △ ABC. As long as the edge ABC of △ ABC is known and the height AD = h on the edge of BC, the relationship between EF and EH of two adjacent rectangles can be found, Circumference and area problems. The solution to these problems is regular: