<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation

9.12: Polygon Classification

Difficulty Level: At Grade Created by: CK-12
Atoms Practice
Estimated6 minsto complete
%
Progress
Practice Polygon Classification
Practice
Progress
Estimated6 minsto complete
%
Practice Now
No content to show

Vocabulary

Concave

Concave

A concave polygon has at least one interior angle greater than 180 degrees. A common way to identify a concave polygon is to look for a "caved-in" side of the polygon.
Convex

Convex

A convex polygon contains no interior angles greater than 180 degrees.
Decagon

Decagon

A decagon is a ten sided polygon.
Diagonal

Diagonal

A diagonal is a line segment in a polygon that connects nonconsecutive vertices
Exterior angles

Exterior angles

An exterior angle is the angle formed by one side of a polygon and the extension of the adjacent side.
Heptagon

Heptagon

A heptagon is a seven sided polygon.
Hexagon

Hexagon

A hexagon is a six sided polygon.
Interior angles

Interior angles

Interior angles are the angles inside a figure.
Nonagon

Nonagon

A nonagon is a nine sided polygon.
Octagon

Octagon

An octagon is an eight sided polygon.
Pentagon

Pentagon

A pentagon is a five sided polygon.
Polygon

Polygon

A polygon is a simple closed figure with at least three straight sides.
Regular Polygon

Regular Polygon

A regular polygon is a polygon with all sides the same length and all angles the same measure.
Vertices

Vertices

Vertices are points where line segments intersect.
Equilateral

Equilateral

A polygon is equilateral if all of its sides are the same length.

Image Attributions

Show Hide Details
Description
Difficulty Level:
At Grade
Authors:
Grades:
Date Created:
Oct 29, 2012
Last Modified:
Jun 05, 2016
Files can only be attached to the latest version of Modality
Reviews
50 % of people thought this content was helpful.
1
Loading reviews...
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original
 
MAT.GEO.140.L.3