There is no definite father of triangles.
thanks for your effort. I already knew that the father of triangles is Georgeo Triangle :)
 edward j. goirgio was the father of triangles
Father Giorgio Triangle
Father Edward J. Giorgio (1909-1946) is the namesake of this Williamsburg triangle, located at the intersection of Jackson and Lorimer Streets and Meeker Avenue. Ordained in 1935, Father Giorgio was the cherished pastor and spiritual leader of our Lady of Mt. Carmel Church on North Eighth Street from 1935 until 1943. He is remembered today for his work with the youth of Williamsb
there is no FATHER of TRIANGLE, maybe you can search pythagoras a greek mathematician who has great contribution on understanding the TRIANGLE
however even pythagoras is not named the father of triangles.