sphere
Only one point. A dimensionless figure.
It is a 3 dimensional shape and in geometrical terms it's only limited to one of 5 perfect solids
A polyhedron of 5 or more sides can always be found that has a rectangular face. So three shapes are:a pentahedron (rectangle based pyramid),a hexahedron (cuboid),a heptahedron (pentagonal pyramid).
Try this one. It has a little one that may help. intermath.coe.uga.edu/tweb/gcsu.../Faces%20edges%20and%20vertices.doc -
Cone
sphere
Only one point. A dimensionless figure.
tangent
It is a 3 dimensional shape and in geometrical terms it's only limited to one of 5 perfect solids
tangent
One possible answer is: a point.
A polyhedron of 5 or more sides can always be found that has a rectangular face. So three shapes are:a pentahedron (rectangle based pyramid),a hexahedron (cuboid),a heptahedron (pentagonal pyramid).
point
Try this one. It has a little one that may help. intermath.coe.uga.edu/tweb/gcsu.../Faces%20edges%20and%20vertices.doc -
No ... at least not a measurable one.
Parabola - apex