Inscribed angles and polygons are investigated through examples and a video lesson. [0:42]

Given two polygons, try to map one onto the other using angle-preserving transformations, and determine whether they are similar. Transformations are done in "intuitive mode." Students receive immediate feedback and have the opportunity...

The Geometry tutorial discusses interior and exterior angles of a polygon. Sample exercises with explanations are included.

The geometry resource explores angles in a polygon. Notes, examples, and practice problems are included.

This website has basic definitions for most polygons, regular and irregular.

Gives a clear definition and drawing of an exterior angle of a polygon.

[Free Registration/Login Required] Explore the world of polygons. Review the different types of polygons and quadrilaterals. Practice counting angles and sides. Identify specific polygons and create your own polygons.

Test your geometry aptitude using this interactive matching game. Match pictures and symbols to the correct definition. Answers are verified immediately. Winners can earn as much as 10,000 dollars and have their name posted for the day.

A guide to support parents as they work with their students with time, shapes, and fractions as equal parts of shapes.

Students may use this computer applet to explore angle sums of triangle, quadrilaterals, pentagons and hexagons.

[Free Registration/Login Required] This is a lesson on interior and exterior angles of polygons. This has an interactive piece as well as an assessment piece.

Using this Logo Program you can experiment with different values for N in the procedure and see the changes in the results.

Finding the third angle of a triangle becomes easier by the explanation and examples presented.

Learn about the interior angles of a triangle with this helpful reference tool. Provides a detailed definition and interactive activity that enhances further explanation. Includes links to related topics.

An interactive site that instructs and demonstrates how to find the fourth angle of a quadrilateral. This site also has many links to other interactive lessons.

In this lesson on geometry and polygons, you use origami to use various polygons to make a heart. Included in this PDF lesson is vocabulary worksheet with answers provided.

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

Learn about drawing shapes using only a compass and straight edge or ruler with out measuring any lengths or angles.

This study guide on circles covers some vocabulary terms, and inscribed angles and polygons. It is available for download with free registration.

This task examines the ways in which a plane can be covered by regular polygons in a regular tessellation arrangement. The problem uses the formula for the measure of the interior angles of a regular polygon and the goal of the task is...

Students will use the Sphero robotic ball to draw polygons and learn the relationship between heading angles and the number of sides in a polygon where all sides are equal. They will also learn how to setthe colors of the lights inside...

Gives a clear definition and drawing of an interior angle of a polygon.

Gives a clear definition and drawing of the complementary angles in a polygon.

[Free Registration/Login Required] Students will move point B on the triangle to explore that all sides and angles remain the same. Click learn more to watch a video and click challenge me to answer a practice question.