Hoping someone can help me out with some math. I'm building a Texas Star (Range Target) with five pedals that swing on arms. I am using 90 degree angle iron to protect the arms. I want to join the five pieces of angle iron and weld them together at the tips. They need to be cut and positioned so if the angle is up (opening flat), five pieces of angle iron join and can be welded up without overlap. My first thought was pentagram, so I cut out five pentagrams, folded them at 90 degrees and put them together. I can only fit three together. Help. Math was not my strong point.