profile p x 5 y 1 x -4 y 4 x -1 y -5 prism pr p 0 0 1 vertex v2 5 1 0 vertex v1 1 5 0 edge e v1 v2 wire pp e plane pl 0 0 0 0 0 -1 featlf pr pp pl 0 0 0.3 0 0 0 1 1 featperform lf result set square 53.2971