Cube https://www.mathematische-basteleien.de/cube.htm
Three pyramids of equal volumes The largest square inside a cube The red square
Three pyramids of equal volumes The largest square inside a cube The red square
10-24. 2) Greek Cross: 10-02, 24-10, 19-17-05, 02-10, 15-17, 10-24, 29-17. 3) Pyramid
2) Griechisches Kreuz: 10-02, 24-10, 19-17-05, 02-10, 15-17, 10-24, 29-17. 3) Pyramide