In geometry, rotation refers to the circular movement of an object around a center point or axis. When we rotate a shape, we turn it to a certain angle in a specific direction. For example, if you have a triangle and you rotate it 90 degrees clockwise around a point, each vertex of the triangle moves to a new position while the overall shape remains the same.
Rotations can be described using terms like angle, center of rotation, and direction (clockwise or counterclockwise). The angle of rotation is the measure of how far the shape has turned.
It’s important to note that during a rotation, the distances between points in the shape and the center of rotation do not change, which preserves the shape’s size and orientation. This property makes rotation a rigid transformation, meaning the object retains its structure while being moved.