Areas of Triangles
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【期刊名称】《中学生数学：初中版》 【年(卷),期】2005(000)016
【摘要】<正>We know that the area of any right triangle is half the area of the rectangle which has the same height and the same base with the triangle.The area of rectangle DFEG below is bh.So the area of triangle DFG is 1/2bh. Now we can give a proof of the conclusion that every triangle has half the area of a related rectangle. 【总页数】1页(P.41-41)
【关键词】triangle conclusion proof altitude drawn sheet opp 【作者】; 【作者单位】; 【正文语种】英文 【中图分类】G634.6 【相关文献】
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Areas of Triangles
