Noun:

ডেকাগোন্, দশকোণী ও দশভুজবিশিষ্ট ক্ষেত্র,

decagon's Usage Examples:

interior angles of a simple decagon is 1440°.

A self-intersecting regular decagon is known as a decagram.

A regular decagon has all sides of equal length.

Regular zig-zag skew polygons Skew square Skew hexagon Skew octagon Skew decagon Skew dodecagon {2}#{ } {3}#{ } {4}#{ } {5}#{ } {5/2}#{ } {5/3}#{ } {6}#{.

There are one square, one decagon, and one dodecagon on each vertex.

There is one regular decagram, containing the vertices of a regular decagon, but connected by every third point.

number that extends the concept of triangular and square numbers to the decagon (a ten-sided polygon).

cupola consists of 5 equilateral triangles, 5 squares, 1 pentagon, and 1 decagon.

centered decagonal number is a centered figurate number that represents a decagon with a dot in the center and all other dots surrounding the center dot.

A five-pointed star (☆), geometrically an equilateral concave decagon, is a common ideogram in modern culture.

and octagon faces: Two Johnson solids have only triangle, pentagon, and decagon faces: Only one Johnson solid has triangle, square, pentagon, and hexagon.

icosagon has Schläfli symbol {20}, and can also be constructed as a truncated decagon, t{10}, or a twice-truncated pentagon, tt{5}.

AF is drawn bisecting DC so that DF and CF are sides c of an inscribed decagon, Ptolemy's Theorem can again be applied – this time to cyclic quadrilateral.

infinite set of prisms, formed by ten square side faces and two regular decagon caps.

there are also great circle pentagons and decagons (in equatorial planes through ten vertices).

Only the decagon edges are visible elements of the 600-cell.

The five shapes of the tiles are: a regular decagon with ten interior angles of 144°; an elongated (irregular convex) hexagon.

best to show the pentagram boundary line to distinguish it from a concave decagon.

each of these 10 rhombi has 2 of its 4 sides lying on this zig-zag skew decagon equator.

dodecahedron by truncating (cutting off) the corners so the pentagon faces become decagons and the corners become triangles.

Synonyms:

polygonal shape; polygon;

Antonyms:

convex polygon; concave polygon;