Illustrative Math Lesson 1.2 Flashcard

Front

What is a rotation in geometry?

Back

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

Front

What is a reflection in geometry?

Back

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

Front

What is a translation in geometry?

Back

A translation is a transformation that moves a figure from one location to another without changing its shape or orientation.

Front

True or False: A rotation changes the size of a figure.

Back

False. A rotation does not change the size of a figure.

Front

True or False: A reflection creates a mirror image of a figure.

Back

True. A reflection flips the figure over a line.

Front

True or False: A translation can change the orientation of a figure.

Back

False. A translation does not change the orientation of a figure.

Front

What is the center of rotation?

Back

The center of rotation is the fixed point around which a figure is rotated.

Front

Give an example of a reflection in real life.

Back

A reflection can be seen in a mirror or a calm body of water.

Front

What happens to the coordinates of a point during a translation?

Back

The coordinates of a point change based on the direction and distance of the translation.

Front

True or False: A translation can be described as sliding a figure.

Back

True. A translation is often described as sliding a figure to a new position.