12/17:Geo Major

Front

What is rotation in geometry?

Back

A transformation that turns a figure about a fixed point at a given angle and direction.

Front

What is the pre-image in transformations?

Back

The original figure prior to a transformation.

Front

What does it mean to rotate a figure 90 degrees clockwise?

Back

To turn the figure 90 degrees in the direction of the clock hands around a fixed point.

Front

What does it mean to rotate a figure 90 degrees counterclockwise?

Back

To turn the figure 90 degrees in the opposite direction of the clock hands around a fixed point.

Front

What is the result of rotating a figure 180 degrees?

Back

The figure is turned upside down around a fixed point.

Front

What is a reflection in geometry?

Back

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

Front

What is the x-axis reflection of a point (x, y)?

Back

The reflection is (x, -y).

Front

What is the y-axis reflection of a point (x, y)?

Back

The reflection is (-x, y).

Front

What is a translation in geometry?

Back

A transformation that slides a figure from one position to another without changing its shape or orientation.

Front

What is the difference between rotation and reflection?

Back

Rotation turns a figure around a point, while reflection flips it over a line.