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www.toppr.com/guides/maths/understanding-quadrilaterals/polygons-and-its-types

Octagon: As the name says, the Eight-sided polygon is known as Octagon. Nonagon: The polygon which possesses nine straight lines is known as nonagon .

www.kidsmathgamesonline.com/facts/geometry/2dpolygonshapes.html

Enjoy learning about 2D polygon shapes with our range of interesting facts. Find information about triangles, squares, pentagons, hexagons, heptagons, ...

www.storyofmathematics.com/polygons-definition

A polygon is a closed 2D figure made up of line segments but not curves. ... The following are a few mnemonics to help remember the names of some polygons:.

www.quora.com/What-is-the-name-of-a-polygon-that-has-21-30-sides

Polygons have been named in Greek language. Up to decagon , these names are quite familiar.. Then the following 3 points are to be memorized for further ...

www.mathplanet.com/education/geometry/points,-lines,-planes-and-angles/polygons

A polygon is usually named after how many sides it has, a polygon with n-sides is called a n-gon. E.g. the building which houses United States Department of ...

www.web-formulas.com/Math_Formulas/Geometry_Perimeter_of_Polygon.aspx

List of polygon shapes ... A polygon that has sides which are not equal and whose interior angles are different is called an irregular polygon. Perimeter of an  ...

graphics.fandom.com/wiki/Polygon

The triangle, quadrilateral, and nonagon are exceptions. Polygon names. Name, Sides. Triangle (or trigon), 3. Quadrilateral (or tetragon), 4.

www.math-salamanders.com/list-of-geometric-shapes.html

A quadrilateral is a polygon with 4 sides. Quadrilaterals are also sometimes called quadrangles or tetragons. There are quite a few members of the quadrilateral ...

www.2dcurves.com/line/linep.html

Apr 6, 2006 ... For example the regular heptadecagon has this quality. The polygons have been given own names, derived from the Greek numerals: ...

www.hmhco.com/blog/teaching-classifying-polygons

Aug 16, 2019 ... Use different colors for each polygon and write the name of each in the ... List the properties of a triangle on the board: Three-sided polygon, ...