任意三角形已知三边求面积的几种初中方法及其推广应用的例子 知乎 Sketch Coloring Page

任意三角形已知三边求面积的几种初中方法及其推广应用的例子 知乎 Template

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tomski任意三角形已知三边求面积的几种初中方法及其推广应用的例子 知乎 coloring

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�们把边长和面积都是整数的三角形叫作整数三角形例如边长分别为345的直角三角形其面积为6是一个整数三角形． 1你能再举几个例子 sketch template

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