An equil triangle........................with sides of the square root of 3.........is the only equil triangle.......u an inscribe in the unit circle.......all 3 angles...........of an equil triangle..........are 60 degrees........just like..........11 + 13 + 17 + 19 ...........which all four..........added together......sum to 60........1 sum.........4 primes....like 14i................not drawn to scale...........just for theoretical purposes.........