Platonic Solids
(box: x-ray)
(F: faces)
(slider: perspective)
(image: L=rotate R=zoom)
(M: metrics)
Please use a browser that supports "canvas"
(Uniform #1)
Tetrahedron
Vertices:
4 (4[3])
Faces:
4 (equilateral triangles)
Edges:
6
Symmetry:
Full Tetrahedral (Td)
Dihedral Angle:
acos(1/3)
≈70.528779366 degrees
Dual Solid:
Tetrahedron (itself)
(values below based on edge length = 1)
Circumscribed Radius:
sqrt(6)/4
≈0.612372435695794524549
Midscribed Radius:
sqrt(2)/4
≈0.35355339059327376220
Inscribed Radius:
sqrt(6)/12
≈0.20412414523193150818
Volume:
sqrt(2)/12
≈0.11785113019775792073