It would look like the below.........cut in half..............................this would be the triangle on the positive X axis..........................the right corner point would be (1/2, 0).................only the hyp would be one.....................remember it is the same equil. triangle................all sides one...............the vertical.........is along the Y axis............the bottom along the X......................the hyp would be one.......from the original equil. triangle whose all 3 sides are one..............the bottom would be of length 1/2...............the distance from the origin to (1/2, 0).........................the bottom right angle................at (1/2, 0) is 60 degrees..............................at the origin.........90 degrees............so the top left angles is 30............it is the 30/60 type............