[Free Registration/Login Required] Students will move the pentagon points to explore convex polygons. Click learn more to watch a video and click challenge me to answer a practice question.

A complete reference guide to irregular polygons. It provides definitions and an interactive activity that enhances further explanation. Includes links to related topics.

A complete reference guide to regular polygons. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

This site provides definitions of different types of polygons and figures.

This is a question response page from the University of Regina where one may find an algorithm for finding the number of degrees of any convex polygon.

[Free Registration/Login may be required to access all resource tools.] Find the sum of the interior angles of a convex polygon.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate exterior angles of regular polygons. Students examine guided notes, review guided practice, watch instructional videos...

Learn how to construct convex polygons and the mathematical foundations of symmetry on this site.

Polygons for kids. Learn how they work, terms, tricks and examples. Regular, convex, concave, complex, and more.

This activity will allow students to use Cabri Jr. to find the sum of the measures of interior angles of convex polygons and visually see how the Interior Angle Sum Theorem works.

This site talks about how to check for the intersection of polygons. Computer programs calculating intersections are presented.

[Free Registration/Login Required] This flipchart defines a polygon and the classification of concave and convex polygons.

A comprehensive guide for learning all about concave shapes with definitions, the difference between concave and convex, examples, and practice questions.

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the measure of the exterior angles of a polygon. Students examine guided notes, review guided practice, watch instructional videos and...

This is a question response page from the University of Regina where you will find an algorithm for finding the number of degrees of any convex polygon.

Hotmath provides 21 practice problems dealing with systems of equations and inequalities. Each of the practice problems include a step-by-step guide for solving their algebraic problem.

This in-depth paper examines the idea of convexity. Euclid's Elements, the first geometry textbook, assumed convexity without mentioning the term.

This is a question response page from the University of Regina where you will find an algorithm for finding the number of degrees of any convex polygon.

Students discover properties of interior and exterior angles of convex polygons using the TI-89 and Geometer's Sketchpad.

This site provides a definition for plane figure (at the top of the page) and a few examples.

This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...

This site gives the general definition of a nonagon with examples of a regular (convex) and irregular concave nonagons. There are links to related terms, challenging problems, more information, and the interactive check point involving...

This site from the University of California deals with different applications and topics pertaining to triangles, particularly triangulation.