Multimedia Entries that feature multimedia: QuickTime movies, LiveGraphics3D, and JavaSketchpad.

Angle Bisector

Centroid

Congruent

Cube

Dodecahedron

Eccentricity

Ellipse

Equation of a Line

Focal Radius

Horizontal Line Equation

Icosahedron

Octahedron

Orthocenter

Plane

Platonic Solids

Point-Slope Equation of a Line

Rectangular Parallelepiped

Tautochrone

Tetrahedron

Vertical Line Equation

Volume by Parallel Cross Sections