I probably could have done this with an array on a circular curve…but it was much easier and faster to add a circle mesh with six vertices, subdivide the outer edges, remove the original centerlines, then subdivide the remaining edges.
Scaled using the edge-length measurement option to make sure the outer quad edges are the right size, and extruded just to make the angle of the shot mess with your perception of whether it’s ‘flat’ even more 
