How would you cut the sphere to make the largest circle for printing?
If you cut a sphere perfectly through the middle you will have the largest flat area possible to print.
How could you make the largest possible circle from the cylinder ... and the cone?
For a cylinder and a cone there are no cuts needed to make the largest circular area for printing. for a con you use the base and it is the same for the cylinder.
Which shape would you use to make a very small circle for printing?
You would use the tip of a pyramid.the tip of a pyramid is the finest circular point out of all these shapes.
If you cut the shapes in different ways, what other shapes for printing could you make?
Cylinder-
-rectangle/square
Cone-
-triangle
If you make two cuts, are other shapes possible?
Yes
Cone-
-trapezium
-semi-circle
Sphere-
-semi-circle
Cylinder-
-triangle
-rectangle
-square
-semi-circle