Using Properties of Transformations to Show Congruence VOCABULARY.

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Presentation transcript:

Using Properties of Transformations to Show Congruence VOCABULARY

Congruent Polygons Two polygons are congruent if they have exactly the same shape and size.

Transformations A transformation is a change in position, shape, or size of a figure. Three types of transformations that change position only are translations, reflections, and rotations.

Rotations A rotation is a transformation that turns a figure about a fixed point, called the center of rotation.

Reflections A reflection is a transformation that flips a figure over a line of reflections.

Translation A translation is a transformation that slides each point of a figure the same direction and in the same direction.

Rigid Motion Is the action of taking an object and moving it to a different location without altering its shape or size. Rotations, reflections, and translations are examples of rigid motion.