# Common Rotations

## Common Rotations

A rotation can be by any angle about any center of rotation.

However, it can be time consuming to rotate a shape and even more difficult to describe a rotation.

Rotations of 90°, 180°, 270° and 360° about the origin, however, are relatively simple.

### A Rotation of 90° About the Origin

The shape below has been rotated 90° (one quarter turn) clockwise about the origin:

### A Rotation of 180° About the Origin

The shape below has been rotated 180° (one half turn) clockwise about the origin:

### A Rotation of 270° About the Origin

The shape below has been rotated 270° (three quarter turns) clockwise about the origin:

### A Rotation of 360° About the Origin

The shape below has been rotated 360° (one whole turn) clockwise about the origin: