see http://www.ruthannzaroff.com/mirkwooddesigns/triangle.htm
I use petal folds as origami "fortune cookies" to contain fortunes, jokes, blessings, drawing numbers or ice breakers to enliven a party or dinner table. They boost the table visually and are a great calorie-free favor. This template was discovered during a search for the triangle in the circle motif. There are many versions of this geometric combination, one of which is a beloved recovery symbol.