P. 6 Rotation Practice 2024

Front

What is rotation in geometry?

Back

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

Front

What does counterclockwise rotation mean?

Back

Counterclockwise rotation means turning in the direction opposite to the movement of the hands of a clock.

Front

What is the center of rotation?

Back

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

Front

What is a 90° rotation?

Back

A 90° rotation turns a figure a quarter turn around the center of rotation.

Front

What is a 180° rotation?

Back

A 180° rotation turns a figure halfway around the center of rotation.

Front

What is a 270° rotation?

Back

A 270° rotation turns a figure three-quarters of a turn around the center of rotation.

Front

What happens to the coordinates of a point after a 90° counterclockwise rotation?

Back

The coordinates (x, y) become (-y, x) after a 90° counterclockwise rotation.

Front

What happens to the coordinates of a point after a 180° rotation?

Back

The coordinates (x, y) become (-x, -y) after a 180° rotation.

Front

What happens to the coordinates of a point after a 270° counterclockwise rotation?

Back

The coordinates (x, y) become (y, -x) after a 270° counterclockwise rotation.

Front

How do you identify the new location of a triangle after rotation?

Back

To identify the new location, apply the rotation rules to each vertex of the triangle.