Rotations

What is Rotation?

Rotation involves turning a shape around a specific point, called the centre of rotation, by a certain angle, in either a clockwise or anti-clockwise direction.

Key Characteristics of Rotation:

• The image (rotated shape) is the same size as the original but may be in a different orientation.
• The distance from the centre of rotation to any point on the shape remains the same before and after the rotation.
• Angle of rotation: This is typically $90°, 180°, or\ 270°$.
• Direction of rotation: This can be clockwise or anti-clockwise.

Describing Rotations

When describing a rotation, you must provide the following information:

1. Centre of Rotation: This is the fixed point around which the shape is rotated. It is often given as a coordinate, such as ($0, 0$) or ($2, 1$).
2. Direction of Rotation: This is the degree of rotation, which is usually $90°, 180°$, or $270°$.
3. Angle of Rotation: This is the degree of rotation, which is usually $90°, 180°$, or $270°$.