Tri-fold: Start with a square. Fold opposite points (corners)
together, crease and unfold. Repeat with the other pair of points
(corners). There should be 2 diagonal folds crossing at the middle.
This will create 4 triangular shapes.
Cut from one point (corner) to stop at the center. Fold the 2
triangles adjoining the cut edges one over the other. This changes
the flat square into a 3-D pyramid with one triangle open. The double
(Congruent) triangle becomes the bottom of the triarama. After you
try to make one if you have trouble I will try again to explain. I
have never had to write the directions.
Sharon from NJ
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