Dodecagon

The constructible regular 12-sided Polygon with Schläfli Symbol . TheInradius , Circumradius , and Area can be computed directly from the formulas for a generalregular Polygon with side length and sides,

			(1)
			(2)
			(3)

A Plane Perpendicular to a axis of a Dodecahedron or Icosahedron cuts the solid in a regularDecagonal Cross-Section (Holden 1991, pp. 24-25).

The Greek, Latin, and Maltese Crosses are all irregular dodecagons.

References

Holden, A. Shapes, Space, and Symmetry. New York: Dover, 1991.

• Logarithmic Spiral Pedal Curve
• Logarithmic Spiral Radial Curve
• Logic
• Logical Paradox
• Logistic Distribution
• Logistic Equation
• Logistic Equation r=4
• Logistic Growth Curve
• Logistic Map
• Logit Transformation
• Log Likelihood Procedure
• Log Normal Distribution
• Logos
• Log-Series Distribution
• Log-Weibull Distribution
• Lommel Differential Equation
• Lommel Function
• Lommel Polynomial
• Lommel's Integrals
• Long Division
• Long Exact Sequence of a Pair Axiom
• Longitude
• Long Prime
• Look and Say Sequence
• Loop (Algebra)