Get the definition and properties of a polygon. Then explore such topics as: 1) types of polygon 2) area 3) Perimeter 4) angles associated with polygons and 5) names of polygons.

Learn about a square inscribed in a circle with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.

This site gives a description of diagonals along with a visual representation. Be sure to follow the links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving diagonals...

Based off of the hit television show NUMB3RS, this lesson shows students different ways to find centroids of regular polygons. The traditional way (using medians) is presented, as well as the triangulation method, the diagonals method,...

Incorporating concepts in algebra, number sense, patterning, data collection, and geometry, this activity engages students in various hands-on activities to explore the relationship between regular polygons and the number of diagonals...

Mattie and her four sisters are visiting a toy store. Can you help them find different shapes in the toy store?

[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area and perimeter of a rhombus or kite. Students examine guided notes, review guided practice, watch instructional videos and...

A guide to support parents as they work with their students in geometry and measurement word problems.