Bascetta Star https://www.mathematische-basteleien.de/bascettastar.htm
You have to go through it. Fold the module 29 more times. ……
Dein Suchergebnis zum Thema: have
Triangular Numbers https://www.mathematische-basteleien.de/triangularnumber.htm
You can arrange them to n(n+1)/2 pairs. n+1 horizontal lines also have n(n+1)/2 pairs
Paper Banger https://www.mathematische-basteleien.de/banger.htm
You have a similar sound if you clap your hands once. ……
Domino Puzzles https://www.mathematische-basteleien.de/dominos.htm
These are the squares, which the dominos have.
Paper Basket https://www.mathematische-basteleien.de/basket.htm
(If you have no practise, you should pre-fold by several halvings.) 10 …
Homepage 1999 – how it started https://www.mathematische-basteleien.de/homepage1999e.htm
A colleague suggested: "Think of newspapers, they have narrow columns for better
Spirograph https://www.mathematische-basteleien.de/spirographs.htm
In the end you have to use both trigonometric formulas. Result: ……
Fünfstrahlige Figuren https://www.mathematische-basteleien.de/fuenfstrahlig.htm
Links ein Beispiel Kepler-Poinsot-Körper "All four (Kepler-Poinsot Polyhedra) have
Cuboctahedron https://www.mathematische-basteleien.de/cuboctahedron.htm
Opposite areas have the same colours.