GM-U3.1a Lesson: Identifying Rigid Motion

Transformations

Changes done to shapes on a coordinate plane by rotation, reflection, translation, or dilation.

Rigid Motion

Transformations (rotations, reflections, and translations) where the size and shape of a figure is preserved. The location and/or orientation may be altered.

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Reflection: The flipping of a shape across a line of reflection.

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Example 1:

Rotation: The spinning of a figure around a fixed point.

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Example 2:

Translation: The sliding of a figure horizontally and/or vertically.

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Example 3: