Square https://www.mathematische-basteleien.de/square.htm
Some nostalgia: I still have a calculator from 1971 (Quelle "Privileg"), which has
Some nostalgia: I still have a calculator from 1971 (Quelle "Privileg"), which has
The violet triangles are congruent and have the sides sqrt(2)/2*a, sqrt(2)/4*a, and
Parallelogram Seven tetrahexes have 28 hexagons altogether.
If you have the choice of the following four drawings most people would choose picture
The radii have the ratios 1 : 1.5 : 2 : 2.5 : 3…..
You have to remove the pegs one after the other by jumping horizontally or vertically
Cube and mirror cube have mirror images, for instance Ab and Ba.
Continue … …… …and continue to weave… ……. …until all the strips have
Hi Jurgen Koller, I have ventured into the world of polyiamonds.
You have to go through it. Fold the module 29 more times. ……