Students learn how to construct and measure angles using a protractor and ruler. The resource consists of a video demonstration and exploration activity.

Explains the terms and symbols used to discuss line angles, what an angle is, and the types of angles. Includes short video lesson demonstrating how to use a protractor to measure an angle. [0:57]

[Free Registration/Login may be required to access all resource tools.] Learn how to use a protractor to draw angles.

[Free Registration/Login may be required to access all resource tools.] Find angle measures using a protractor and the Angle Addition Postulate.

Test your knowledge of using a protractor to construct triangles.

When you are working with geometry and trigonometry, you will see a lot of Greek letters. It will be helpful to know how the names of these letters are spelled and pronounced.

This geometry resource investigates types of angles. Definitions, detailed examples, and practice problems are included.

Students explore four types of angles in this interactive web lesson.

Students use pattern shapes to explore geometry and fractions, creating their own designs, or filling in outlines. As they work with the shapes students explore geometric relationships, think about angles, investigate symmetry, and...