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Ponder This

August 1998

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Ponder This Challenge:

We have a triangle ABC, with a point D on side AB, E, on side BC, and F on side CA. The smaller triangle, DEF, is equilateral. The line segments AD, BE, and CF all have equal length.
Problem: Prove that ABC is also equilateral.

Comment: Although we have a solution for this problem, it is not a simple one.

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Challenge: 08/01/98 @ 9:00 AM EST
Solution: 09/01/98 @ 5:00 PM EST
List Updated: 12/01/01 @ 9:00 AM EST

People who answered correctly:

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