P. 6 Rotation Practice 2024

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

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

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

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

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

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

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

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

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

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