The Organization of Triangles, Inc. is a youth sorority located in the State of New York, for girls aged 10 through 21 years. For over seventy-five years, the Organization of Triangles, Inc., has been helping to prepare girls to build "A Finer American Womanhood". Triangle provides a growth environment with adult guidance. Triangle tries to develop in each of its members a devotion to high ideals, a better understanding of duty to Home, God, and Country, and stresses the importance of education in the development of intellect and character. They also make life-long friends, and have fun!

The Organization of Triangles, Inc., is a Masonic Youth Organization. It was established in 1925 as "Daughters of the Eastern Star", and in 1961 was incorporated with its name being The Organization of Triangles, Inc.. Triangle is only active in New York State and does not have affiliations in any other state or country.

Any girl between the ages of 10 and 21 years of age, and is related by blood, marriage, or adoption to a Master Mason, a member of the Order of the Eastern Star, or a member of the Order of the Amaranth in good standing, is eligible for membership. In addition, a Master Mason, Eastern Star or Amaranth member, may sponsor a girl for membership in the Organization of Triangles, Inc.. After a resolution passed at Convention 1999, the age that a girl can petition for membership has been changed, on a trial basis, to 10 years old.

This organization, recognizing the triangle as a symbol of perfection, use its points not to shroud them in mystery, but rather to illuminate the threefold duties of man--to love our Creator, love for our fellow men, and recognition of personal worth. Therefore, we try to inculcate in the hearts of our members that our interpretation of the symbols or meaning of our Triangle can be used for the attainment of a better life.