...and triangular hole Comment You can do even better and make a shape that fits perfectly in a square hole, round hole and triangular hole. See this clip for the excellent TV show QI http://www.youtube.com/watch?v=6fUplOcay7E Reply
You can do even better and make a shape that fits perfectly in a square hole, round hole and triangular hole. See this clip for the excellent TV show QI
http://www.youtube.com/watch?v=6fUplOcay7E