How to make an equilateral triangle out of square paper

(page 3)

3rd picture of equilateral triangle out of square paper

03.

Apply the slanted valley-folds of the step #2.

The diamond point merged on the horizontal half line.

Prepare to unfold the valley-fold that you have just applied.

4th picture of equilateral triangle out of square paper

04.

Unfold the valley-fold of the step #3.

Prepare to apply another slanted valley-folds.

Make sure the upper-right corner (diamond) merged on the horizontal half line after applying the valley-fold

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