EXPLORE
LATEST
ABOUT
AUTHORING AREA
PARTICIPATE
Your browser does not support JavaScript or it may be disabled!
Subscribe to RSS feed
Izidor Hafner
«
PREVIOUS

1

2

3

4

5

6

7
...
49

NEXT
»
Demonstrations 61  80 of 969
Monge Point of a Tetrahedron
Locus of Points at Constant Distance from the Edges of a Trihedron
Three Planes in a Trihedron
Locus of Centers of Spheres
Inscribed and Circumscribed Spheres of a Tetrahedron
Two Conditions for a Tetrahedron to Be Orthocentric
Open Flexible Frame Based on a Rhombic Dodecahedron
A OneParameter Family of Zonohedra
Dissection and Reassembly of Parallelogram of Given Base and Altitude
Theorem on the Dihedral Angles of an Isosceles Tetrahedron
Properties of Isosceles Tetrahedra
RightAngled Tetrahedron
Three Tangents to a Sphere
Spherical Cosine Rule for Angles
Construct a Dihedral Angle of a Tetrahedron Given Its Plane Angles at a Vertex
Altitude of a Tetrahedron Given Its Edges
Tiling a Sphere with Special Right Triangles
Tiling with Spherical Triangles of Area Pi
Menelaus' and Ceva's Theorem for Spherical Triangle
Colored Spherical Projections of Polyhedra
«
PREVIOUS

1

2

3

4

5

6

7
...
49

NEXT
»
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to
Mathematica Player 7EX
I already have
Mathematica Player
or
Mathematica 7+