Rhombic Icosahedron

A Zonohedron which can be derived from the Triacontahedron by removing any one of the zones and bringingtogether the two pieces into which the remainder of the surface is thereby divided.

References

Ball, W. W. R. and Coxeter, H. S. M. Mathematical Recreations and Essays, 13th ed. New York: Dover, p. 143, 1987.

Bilinski, S. ``Über die Rhombenisoeder.'' Glasnik Mat.-Fiz. Astron. Drustro Mat. Fiz. Hrvatske Ser. II 15, 251-263, 1960.

• Robin's Constant
• Robinson Projection
• Robust Estimation
• Rodrigues Formula
• Rodrigues's Curvature Formula
• Rogers-Ramanujan Continued Fraction
• Rogers-Ramanujan Identities
• Rolle's Theorem
• Roman Coefficient
• Roman Factorial
• Roman Numeral
• Roman Surface
• Roman Symbol
• Romberg Integration
• Rook Number
• Rook Reciprocity Theorem
• Rooks Problem
• Room Square
• Root
• Root Dragging Theorem
• Rooted Tree
• Root Linear Coefficient Theorem
• Root-Mean-Square
• Root of Unity
• Root (Radical)