Mathematics and OrigamiVERSION 2
The construction is made out of an equilateral triangle whose center has to be deter-
mined beforehand. At the end, the figure becomes interlocked.
Thus we have a perfect result with this restrain: looking at the obverse we can see the
three complete sides of one the triangles. For the other, we must guess 1/3 of each side. Look-
ing at the figure upside down, we have the converse effect.
VERSION 3 (F. Rhom)
It is a unit construction that employs two identical units based on the equilateral trian-
gle.
1 2
2
a
r