Rigid Motion Review

Front

What is Rigid Motion?

Back

Rigid motion is a transformation that preserves distance and angle measures, meaning the shape and size of the figure remain unchanged.

Front

What are the types of rigid motions?

Back

The types of rigid motions include translations, rotations, and reflections.

Front

Define Translation in rigid motion.

Back

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

Front

What is a Rotation in rigid motion?

Back

Rotation is a rigid motion that turns a figure around a fixed point, called the center of rotation, by a certain angle.

Front

What is Reflection in rigid motion?

Back

Reflection is a rigid motion that flips a figure over a line, creating a mirror image of the original figure.

Front

What is the angle of rotation for a 90° counterclockwise rotation?

Back

The angle of rotation is 90°.

Front

What is the rule for rotating a point (x,y) 90° counterclockwise?

Back

The rule is (x,y) → (-y,x).

Front

How do you reflect a point (x,y) over the y-axis?

Back

To reflect a point (x,y) over the y-axis, the new point becomes (-x,y).

Front

What is the effect of reflecting a point over the x-axis?

Back

Reflecting a point (x,y) over the x-axis results in the new point (x,-y).

Front

What is the transformation from ABC to A'B'C' if it is a reflection across the x-axis?

Back

The transformation is a reflection across the x-axis.