Given triangle ABC.Line l contains vertex A and is parallel to BC,line k contains vertex C and is parallel to AB,line m contains vertex B and is parallel to AC.Lines l,k,m form triangle QRM .How to show that the triangle ABC is medial to the QRM.

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- Apr 6th 2009, 07:36 PMRE1Triangles
Given triangle ABC.Line l contains vertex A and is parallel to BC,line k contains vertex C and is parallel to AB,line m contains vertex B and is parallel to AC.Lines l,k,m form triangle QRM .How to show that the triangle ABC is medial to the QRM.

- Apr 12th 2009, 06:59 AMblertta