MathDB

1993.6

Part of Cono Sur Shortlist - geometry

Problems(1)

DEF equilateral if AD=BE = CF - 1993 Cono Sur Shortlist G6

Source:

10/24/2021
Consider in the interior of an equilateral triangle ABCABC points D,ED, E and FF such thatD D belongs to segment BEBE, EE belongs to segment CFCF andF F to segment ADAD. If AD=BE=CFAD=BE = CF then DEFDEF is equilateral.
geometryEquilateralequal segments