// I interpreted this as being different from 4 in that // we were supposed to simulate the way we'd draw a triangle // in real life paper 5 pen 100 line 20 30 70 80 line 70 80 70 10 line 70 10 20 30 pen 60 repeat A 20 72 { pen (90-A*2/3) line A (30-(A-20)/(5/2)) A (30+(A-20)*8/7) }