Triangle from a Rectangle


triangle from a rectangle


Some origami models start with an equilateral triangle instead of a square sheet of paper. In this case, you need to make the triangular sheets of paper before you start. This page will show you how to get a triangle from a rectangular sheet of paper.

If you are starting with a square sheet of paper, or a rectangle that is not quite long enough, then click here or here.

triangle from a rectangle

Make a Triangle from a Rectangle


  1. Fold and unfold the rectangular sheet of paper in half lengthwise.


  2. Fold the top-right corner of the paper down so the corner meets the crease made in step 1 (join the dots). The crease made should intersect with the bottom-right corner.


  3. Fold left side of the paper over the flap made in step 2. Use the raw edge of the flap as a guide to position this fold.



  4. Unfold and cut along the creases to get an equilateral triangle. Easy.



    Books with Easy Origami

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    • Fun With Easy Origami (Dover Origami Papercraft)
    • Origami: A Step-by-Step Introduction to the Art of Paper Folding by T Cook & S Henry
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    Easy Origami Books


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