The Decad drawing tool is made up of ten points. The Decad is two circles with hexagons inscribed within them. Due to the intersection of the circles at the Vesica Pisces, there is a total of 10 triangular segments and not 12. The Decad tool can be used as an overlay on a trending market to identify significant levels of support and resistance at the hexagonal segment lines.
This is a companion discussion topic for the original entry at https://www.optuma.com/kb/optuma/tools/geometric/decad