Daniel Mentrard, Feb 19, 2022

• 1. The eleven nets of cube
• 2. Surface area of solids by Pappus theorem
• 3. Volume of solids by Pappus theorem
• 4. Fortified castle
• 5. Funny solids for children
• 6. Gaussian curvature surface
• 7. Volume of a barrel
• 8. Tonnage and volume of a boat hold
• 9. Escher cube
• 10. Stellation of a truncated octahedron
• 11. Conics in the cone
• 12. Logarithmic spirals for possible gears
• 13. Possible gears?
• 14. Area of a sphere by decomposition into spherical sectors
• 15. Daily math (1) : the surface to paint
• 16. Net of the cone
• 17. Cube vs Octahedron
• 18. Icosaehedron vs Dodecahedron
• 19. Steinmetz solid for cylindres
• 20. The straight line on the cylinder ??
• 21. Solids and volumes of revolution (rotation about y_axis)
• 22. Solides associes
• 23. Volume of the cube explained by pyramides
• 24. Usuals forms and solids : solids in architecture
• 25. Sphere,cone and cylinder by Cavalieri
• 26. Proportionality of volumes
• 27. Conics
• 28. Mr Bezier's pottery workshop
• 29. Conics
• 30. Unit cube and its diagonals
• 31. Net of the cone (interactive applet)
• 32. Why are these columns in the conversion tables?
• 33. Various 3D Surfaces
• 34. What is the path of a folded/unfolded cube?
• 35. Same volume for different glass shapes but different heights
• 36. Volume of a usual container (interactive applet)
• 37. Truncated pyramids and cones
• 38. Patterns of a cube(Rotate the view with the mouse)
• 39. Networks of circles on the torus
• 40. Euclidean,Spherical and Hyperbolic geometries
• 41. The cardboard box