Rigid Transformations Assessment

Front

What is a rigid transformation?

Back

A rigid transformation is a transformation that preserves the shape and size of a figure, meaning the figure remains congruent to its original form.

Front

What are the three types of rigid transformations?

Back

The three types of rigid transformations are translations, rotations, and reflections.

Front

What happens to the coordinates of a point (x, y) when it is reflected over the y-axis?

Back

The coordinates become (-x, y).

Front

What is the effect of a 90° clockwise rotation on the point (x, y)?

Back

The coordinates change to (y, -x).

Front

What is the effect of a 270° counterclockwise rotation on the point (x, y)?

Back

The coordinates change to (-y, x).

Front

How do you determine if two shapes are congruent after a transformation?

Back

Two shapes are congruent if their corresponding sides and angles are equal after the transformation.

Front

What is the ordered pair for the point C(3, 2) after reflecting over the x-axis?

Back

The ordered pair becomes C'(3, -2).

Front

What is the definition of translation in geometry?

Back

Translation is a rigid transformation that slides a figure in a straight line from one position to another without changing its shape or size.

Front

What is the angle of rotation for a figure that has been rotated 180° about the origin?

Back

The angle of rotation is 180°.

Front

What is the result of reflecting a shape over the x-axis?

Back

The y-coordinates of the points of the shape change sign, while the x-coordinates remain the same.