WSolid geometry
WThree-dimensional space
W3D projection
WBang's theorem on tetrahedra
WChasles' theorem (kinematics)
WConic section
WConical surface
WConstructive solid geometry
WCylinder
WDandelin spheres
WDihedral angle
WGömböc
WOctant (solid geometry)
WReuleaux tetrahedron
WSkew lines
WSoddy's hexlet
WSolid modeling
WSteinmetz solid
WUnit cube