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mathcentral.uregina.ca/QQ/database/QQ.09.96/rosa1.html

After about 6 sides mathematicians usually refer to these polygons as n-gons. So your 13 sided polygon I would call a 13-gon. Cheers, Walter and Harley Go to Math Central. To return to the previous page use your browser's back button.

www.mathsisfun.com/geometry/polygons

Polygons A polygon is a plane shape with straight sides. Is it a Polygon? Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up).

www.tutorvista.com/math/polygon-with-13-sides

The polygons with 13 sides are called as Tridecagon or other wise called as triskaidecagon. The regular decagon has 12 equal sides and angles. The Tridecagon cannot be constructed with compass and ruler. In this article we will see about the polygon with the 13 sides in detail.

en.wikipedia.org/wiki/List_of_polygons

Individual polygons are named (and sometimes classified) according to the number of sides, combining a Greek-derived numerical prefix with the suffix -gon, e.g. pentagon, dodecagon. The triangle, quadrilateral and nonagon are exceptions, although the regular forms trigon, tetragon, and enneagon are sometimes encountered as well.

www.answers.com/Q/What_is_the_name_of_a_13_sided_polygon

A 13-sided polygon can either be called a triskaidecagon or a tridecagon. What shape is a thirteen sided polygon? The name of a 13 sided polygon is Tridecagon. Read More. share:

www.answers.com/Q/What_kind_of_polygon_is_13_sides

A polygon with 13 sides is a triskaidecagon. share with friends. If the sum of the measures of the interior angles of a polygon is 1980 degrees how many sides does it have?

mistupid.com/math/polygons.htm

Note: After about 6 sides mathematicians usually refer to these polygons as n-gons, so a 23 sided polygon would be called a 23-gon. The sum of the measures of the angles of a convex polygon with n sides is ( n - 2)180.

quizlet.com/71667/polygons-3-20-diagonal-rule-flash-cards

polygons 3-20, diagonal rule. has all the polygons from 3-20, has the rule to get diagonals. STUDY. PLAY. Terms in this set (...) triangle. 3 sided polygon. quadrilateral. 4 sided polygon. ... 13 sided polygon. tetrakaidecagon. 14 sided polygon. pentakaidecagon. 15 sided polygon. hexakaidecagon. 16 sided polygon. heptakaidecagon. 17 sided polygon.

www.ditutor.com/geometry/types_polygons.html

They have equal angles and sides . Irregular Polygons. They do not have equal angles and sides. Types of Polygons based on Number of Sides Triangle. 3 sides. Quadrilateral. 4 sides. Pentagon. 5 sides. Hexagon. 6 sides. Heptagon. 7 sides. Octagon. 8 sides. Enneagon or Nonagon. 9 sides. Decagon. 10 sides. Hendecagon. 11 sides. Dodecagon. 12 sides ...

en.wikipedia.org/wiki/Tridecagon

In geometry, a tridecagon or triskaidecagon or 13-gon is a thirteen-sided polygon Regular tridecagon. A regular tridecagon is represented by Schläfli symbol {13}. The measure of each internal angle of a regular tridecagon is approximately 152.308 degrees, and the area with side ...