Transformations: Unit 8 Review

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape.

Front

What are the types of transformations?

Back

The main types of transformations are translations, rotations, reflections, and dilations.

Front

What does it mean for a transformation to preserve congruence?

Back

A transformation preserves congruence if the original shape and the transformed shape are the same size and shape.

Front

What does it mean for a transformation to preserve orientation?

Back

A transformation preserves orientation if the order of points in the shape remains the same after the transformation.

Front

What is a translation?

Back

A translation is a transformation that moves every point of a shape the same distance in the same direction.

Front

What is a rotation?

Back

A rotation is a transformation that turns a shape around a fixed point, called the center of rotation.

Front

What is a reflection?

Back

A reflection is a transformation that flips a shape over a line, creating a mirror image.

Front

What is a dilation?

Back

A dilation is a transformation that changes the size of a shape but keeps its proportions the same.

Front

What is a scale factor in dilation?

Back

The scale factor is the ratio of the size of the new shape to the size of the original shape.

Front

How do you determine if a transformation preserves congruence?

Back

A transformation preserves congruence if it is a translation, rotation, or reflection.