Case number 34

Plane slices of the double-leaf hyperboloid Single-leaf hyperboloid Hyperbolic paraboloid Plane slices of the double-leaf hyperboloid
Plane slices of the single-leaf hyperboloid Plane slices of the elliptical paraboloid Plane slices of the hyperbolic paraboloid Plane slices of the hyperbolic paraboloid
Hyperbolic paraboloid with planar cut Single-leaf hyperboloid with a family of lines Single-leaf hyperboloid with a family of lines Elliptical paraboloid with planar cuts
Hyperbolic paraboloid with linear geneatrix Triaxial ellipsoid sliced along the circle slices Oblate triaxial ellipsoid
Pebbles that got their ellipsoidal shape through erosion Pebbles that got their ellipsoidal shape through erosion Pebbles that got their ellipsoidal shape through erosion
Pebbles that got their ellipsoidal shape through erosion Pebbles that got their ellipsoidal shape through erosion Double leaf hyperboloid

The corresponding bottom case is: Case number U 34

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