How would you make exactly four congruent equilateral triangles with just six matches of equal length in two dimensions?
No other triangles may be created when you are done.
Matches may not be bent, torn, or separated into other matches.
Match ends do not necessarily have to join other match ends. Specifically speaking, certain match ends might be free-standing.
Matches may rest across/intersect other matches.
The figure must possess exactly two lines of symmetry.