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Rigid Motions

Rigid Motions

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Author: Thomas Gianelli
Description:

CCSS for Integrated Mathematics I: G-CO 6. Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure; given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent.

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Tutorial

In this lesson, you will become familiar with each of the three rigid motions and how they affect objects they are performed on.


A rigid motion is performed on an object, and it moves and turns the object without changing its shape, distorting its proportions, or changing its size.

Geometric Transformations Overview

Watch this video for a quick overview of how the rigid motions look in action.

Examples of Rigid Motions

The following site uses music symbols to provide examples of rigid motions.

Click Here

Explore Rigid Motions

Geogebra has a variety of applets that you can use to explore each of the rigid motions and how they work. Check each applet and play around!

Click Here

Final Question

After taking the quiz, look back at the resources in this lesson and answer the following question:


Can two rigid motions of one type combine to create one rigid motion of another type? State which, and provide examples.