Originally Posted by
wesing
The only way to do that would be to paper piece. That is a 60* triangle so there's no way to cut without at least two edges being bias.
The angles in the "triangle in a square" unit are:
Side triangles: 90 degree corners, the other two angles are approximately 26.565 and 63.435 degrees.
Center triangle: The angles are approximately: 63.435, 63.435, and 52.870 degrees.