The meaning of the word congruent is very similar to being equal, and it is often used in geometry in reference to side lengths and angle degrees. The instructor uses a document camera to explain this concept. (02:15)

There is a lot of information on the screen in this four-minute video clip about similar and congruent solids. The viewer may wish to open the video to 'full screen' to see everything fully. (04:03)

This ten-minute video is part of a series. This video shows how to
prove triangles congruence with sss-all sides congruent. sas-two sides are the same and the angle between them aas-two angles and one side are congruent asa- two angles congruent an...d a side between them. Video may start with an ad. (10:14)[more]

From pbslearningmedia.org, produced by Math Active

Identify the properties of two-dimensional geometric figures using appropriate terminology and vocabulary. Draw two congruent geometric figures. Identify corresponding parts of congruent polygons as congruent. Draw a model that demonstrates basic geo...metric relationships such as parallelism, perpendicularity, similarity/proportionality, and congruence.[more]

From pbslearningmedia.org, produced by Math Active

Students learn to understand congruency using this interactive exercise. Students also analyze images to understand what rectangular objects are congruent to Rikki rectangle.

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