文[1]刊出2012年北京市中学生数学竞赛高一年级复赛试题及参考解答,其中填空题的第4题与第二道解答题都涉及面积问题,提供的参考答案都从平面几何的角度切入,作为竞赛题,过程的确简捷漂亮,值得学习!笔者在赏析的同时,还持一个观点,即:任何解答,都仅供参考,应当尽可能拿出自己的解答.所以,带着兴趣,笔者结合高一学生知识基础(已 Wen [1] published the 2012 Beijing high school students mathematics competition high school freshmen exam questions and reference answers, of which fill in the blank questions 4 and answer questions are related to the area problem, provide reference answers from the perspective of plane geometry Cut into, as a competition, the process is indeed simple and beautiful, it is worth learning! Author in appreciation at the same time, also hold a point of view, namely: any answer, are for reference only, should try to come up with their own answer.So, with interest, The author combines high school students knowledge base (already