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求解三角形面积的方法很多,利用三角形面积的坐标公式求解析几何中的面积问题,别有一番情趣.本文将介绍三角形面积公式并利用它解决2015年全国高考题中三个面积问题.
There are many ways to solve the problem of triangular area, and it is not interesting to use the coordinate formula of triangle area to solve the problem of area in the analytic geometry.This paper will introduce the area formula of triangle and use it to solve the three area problems in 2015 National Entrance Exam.