A Math Forum Project

Geometry Forum Problem of the 
Week

    Triangle ABC - June 13-17, 1994

    Given any triangle ABC. Construct D and E as the midpoints of AB and BC. Construct DF and EF, where F is any point on AC. Now construct the polygons BDFE, AEF, and FDC, and look at their areas. What do you find?

    What happens when F is the midpoint of AC? Are there other interesting positions for F? Can you explain what you've found?

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2 July 1995