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用坐标法证明三角形的中位线长为其对应边长的一半.
用坐标法证明三角形的中位线长为其对应边长的一半.
发布时间:2020-08-07 09:27:12
用坐标法证明三角形的中位线长为其对应边长的一半.
网友回答
见解析。解析试题分析:证: 只需将三角形三个顶点的坐标设出,再利用中点坐标公式,求出两腰中点的坐标. 最后用两点间距离公式求得结果既可.
考点:本题主要考查中点坐标公式的应用。
点评:
坐标法证明平面几何问题的典例。
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