Rotations

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, known as the center of rotation, by a certain angle in a specific direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the center of rotation?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a 90° clockwise rotation do to a point (x, y)?

Back

A 90° clockwise rotation transforms the point (x, y) to (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a 180° rotation do to a point (x, y)?

Back

A 180° rotation transforms the point (x, y) to (-x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a 270° clockwise rotation do to a point (x, y)?

Back

A 270° clockwise rotation transforms the point (x, y) to (-y, x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is another term for rotation?

Back

Turn.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point A is at (3, 4), what are the coordinates of A' after a 90° clockwise rotation?

Back

A' will be at (4, -3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point B is at (-2, 5), what are the coordinates of B' after a 180° rotation?

Back

B' will be at (2, -5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How many degrees is a full rotation?

Back

A full rotation is 360 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

What is the effect of a 270° clockwise rotation on a figure?

Back

It turns the figure three-quarters of the way around the center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5