dodecagon
Twelve-angled closed shape
A dodecagon is a polygon with twelve sides and twelve angles.
Regular dodecagons have all sides and angles equal, appearing on some coins and in decorative tilework.
The stop sign's octagonal shape is familiar, but few recognize a dodecagon on sight.
With a dozen sides
- verticesCorner points of shapes
- edgesOuter limits or boundaries
- sidesLateral edges or teams
- angleGeometric measure of rotation
interior · exterior · perimeter · area · diagonal · regular · irregular · convex
Seven-sided closed figure
- nonagonNine-sided closed figure
- quadrilateralFour-sided closed figure
- triangleThree-sided plane figure
- hexadecagonSixteen-angled closed shape
By a dozen
- rotationalConcerning circular movement
- reflectiveCasting back light
- dihedralAngle joining two planes
- axesHeaded chopping tools
radial · bilateral · mirror · order · regular · snowflake · clock · zodiac
Surface-covering arrangement
- patternRecurring arrangement or template
- planeWinged flying vehicle
- mosaicInlaid pictorial arrangement
- gridFramework of intersecting lines
honeycomb · repeating · covering · floor · arrangement · interlocking · geometric · decorative
Stamped metal currency
- tabletopHorizontal furniture surface
- dieStop being alive
- badgeWorn symbol of membership
- medallionLarge decorative disk pendant
architectural · decorative · design · logo
twelve-sided
With a dozen sides
angle · interior · exterior · perimeter · area · diagonal · regular · irregular · convex · concave
heptagon
Seven-sided closed figure
- nonagonNine-sided closed figure
- quadrilateralFour-sided closed figure
- triangleThree-sided plane figure
twelvefold
By a dozen
- rotationalConcerning circular movement
- reflectiveCasting back light
- dihedralAngle joining two planes
axes · radial · bilateral · mirror · order · regular · snowflake · clock · zodiac · balance
tiling
Surface-covering arrangement
- patternRecurring arrangement or template
- planeWinged flying vehicle
- mosaicInlaid pictorial arrangement
grid · honeycomb · repeating · covering · floor · arrangement · interlocking · geometric · decorative
coin
Stamped metal currency
medallion · architectural · decorative · design · logo
- geometric shapessphere, triangle, square, cone, rectangle
- polygonstriangle, quadrilateral, heptagon, nonagon, equilateral triangle
- shapescircle, square, triangle, rectangle, oval
- Dozensdozen, twelfth, twelfths, twelvefold, duodecimal
- geometryangles, circles, angle, shapes, lines
- dozen thingstwelve hours, twelve tribes, twelve jurors, twelve pack, twelve labors