# Characteristics of Polygons

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Last updated 5 years ago

Discipline:
Math
Subject:
Geometry
9,10,11,12   A polygon is a plane shape with straight sides. All sides are connected to form vertices.Note: A circle is not a polygon because it has a curved side.

The name of a polygon is determined by the number of sides. A polygon must have at least three sides.

Characteristics of Polygons

Visit the Polygon Playground to create figures using various polygons.

Explore the different characteristics of polygons at Math is Fun.

ReferencesDiagonals to Quadrilaterals. (n.d.). Retrieved February 2, 2015, from http://illuminations.nctm.org/Activity.aspx?id=3578[Have Fun Teaching]. (2012, July 10). Polygon Song [Video file]. Retrieved from https://www.youtube.com/watch?v=69lfTURDlesPetti, W. (2015). Welcome to the Polygon Playground! Retrieved February 2, 2015, from http://www.mathcats.com/explore/polygons.htmlPolygon. (2014). Retrieved February 2, 2015, from https://www.mathsisfun.com/definitions/polygon.htmlTriangle Classification. (n.d.). Retrieved February 2, 2015, from http://illuminations.nctm.org/Activity.aspx?id=4172

You can find the sum of the interior angles of a polygon by using the formula 180(n-2), where n represents the number of sides.

The Pentagon is the headquarters of the US Department of Defense.

If all angles are equal and all sides are equal, then it is a regular polygon; otherwise it is irregular.

OCTAGON