model_creation_date 2005
model_size je 5,3 x 5,3 x 5,3
model_weight 69,5 (Schwamm); 112,5 (Komplement)
model_from :
nav_classification
Menger sponge of the third iteration stage and complement
The two models show the Menger sponge after three iterations, as well as the volume extracted from the initial cube with edge length $\; a \;$ to create the Menger sponge in the third iteration. After an infinite number of iterations, the Menger sponge has zero volume and its complement has the volume $\; a^3 \;$.