What is a rigid transformation?  A transformation that does not change the size or shape of a figure.

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Presentation transcript:

What is a rigid transformation?  A transformation that does not change the size or shape of a figure

Preimage and Image  Preimage – a shape that undergoes a motion or transformation  Image – a shape that results from a transformation of a preimage

Types of Transformations  Translation  Rotation  Reflection

Translation  A transformation in which every point of the preimage is moved the same distance in the same direction  Example

Rotation  A transformation in which every point of the preimage is moved by the same angle through a circle centered at a given fixed point known as the center of rotation

Reflection  A transformation in which every point of the preimage is moved across a line known as the mirror line so that the mirror is the perpendicular bisector of the segment connecting the point and its image

Reflection (cont’d)

ANY QUESTIONS??????