Please help to list the existing and future entries on spatial geometry!

Basic objects

1. point
2. line, ray, line segment
3. plane
4. cylinder
5. cone
6. polyhedron
7. cuboid
8. sphere
9. great circle
10. surface
11. solid angle

Basic concepts and quantities

1. congruence
2. similarity in geometry
3. distance of non-parallel lines
4. angle between two lines
5. angle between line and plane
6. angle between two planes
7. area of a spherical triangle
8. volume of solid of revolution
9. Gaussian curvature
10. mean curvature at surface point
11. curvature (space curve)
12. Torricelli's trumpet

Analytic geometry

1. coordinate way
2. direction cosines
3. equation of plane
4. line in space
5. quadratic surfaces
6. tangent plane of quadratic surface
7. generatrices of one-sheeted hyperboloid
8. generatrices of hyperbolic paraboloid
9. ruled surface
10. developable surface
11. surface of revolution
12. torus
13. conic section