This is one of the quick and easy origami out there. The red square paper above is the connector that can be used to connect two equilateral triangles. Using equilateral triangles, we can make models of regular polygon and polyhedron.
By the way, The Origami of Equilateral Triangle has be published. Please check it out!
Square Paper (the same paper size when you make equilateral triangles.
Step 1: The Paper.
Square. (same paper size with your equilateral triangles)
Step 2: Fold Into Four Equal Parts.
Make a crease (visible lines formed when you fold the paper).
Step 3: Cut Along the Crease
Step 4: Use One of the Four Parts of Paper That You Cut in Previous Step.
- Fold it into four parts again.
- Place any corner to the center of the paper. All corners. See images