doddecagon

Definition

Noun (mathematics): A "dodecagon" is a polygon with twelve sides and twelve angles. The word is derived from Greek roots ("dodeca-" meaning twelve and "-gon" meaning angle or corner).

Usage Examples

Advanced Usage

• "Regular dodecagon": A dodecagon where all sides and angles are identical. Each interior angle measures 150 degrees.
  • The tiles in the mosque's floor formed a regular dodecagon pattern.
• "Irregular dodecagon": A dodecagon where sides and angles are not all equal.
  • The irregular dodecagon was used as a puzzle piece in the complex shape.

Variants and Related Words

• Dodecagonal (adjective): relating to or shaped like a dodecagon.
  • The dodecagonal tower stood out in the city skyline.
• Dodecahedron (noun): a three-dimensional solid with twelve faces (not to be confused with dodecagon).
  • A dodecahedron has twelve pentagonal faces.

Synonyms

• 12-gon: a more technical term for a twelve-sided polygon.
  • The 12-gon is a common shape in mathematical puzzles.

Related Idioms

• "Twelve-sided figure": a descriptive phrase for dodecagon, often used in non-technical contexts.
  • The stop sign is an octagon, but this shape is a twelve-sided figure, or dodecagon.