Not drawn to scale...............just a guide.....the red triangle.................is half the equil triangle in blue.............................................since........from the origin......0, 0.....which is did not mark......enough chicken scratch is already enough................but from the center................0,0........where all lines meet..........at the center...........the unit circle........is inscribed inside the 2 square ..........the equil triangle in blue..........is inscribed in the unit circle.....................so from 0, 0...........to 0, 1.........which is marked..........up........in red.........is a distance of 1...........from 0, 0................the origin.......to the base of the triangle...................is 1/2....0.5..............why?  It is half of the distance to 0, -1 ......which is marked in red chickenscratch......................so it is 1.5................which in fractions is 3/2.............reflex sym......with 2, 3...........the start of all primes..............so how do I know it is equil and has sides of the square root of 3............for one thing..................and three points touch the unit circle...............kinda like another 13...............3 points along one edge...............a circle has one side...........but....