The Menger sponge is a fractal which is the three-dimensional analog of the Sierpinski carpet. As the number of iterations approaches infinity, the construction’s volume approaches zero while it’s surface area increases without bound. Mr. Lisa’s 575 classes ended up building a level-2 sponge entirely out of business cards.
You can read about MTLI 2019 and other news in the Spring 2019 newsletter.
Join the Math Circle at their next event, Loop the Cat, on Weds, March 28th at the Cormier Youth Center. Read more.