A shape is drawn on a centimetre grid. Write down the order of rotational symmetry of the shape.

Answer

The shape shown on the centimetre grid is a square. The order of rotational symmetry of a shape is the number of times it looks the same during a complete rotation of 360 degrees. For a square: 1. If you rotate it by 90 degrees, it looks exactly the same as the original position. 2. If you rotate it by 180 degrees, it also looks exactly the same. 3. If you rotate it by 270 degrees, it again looks exactly the same. 4. Finally, if you rotate it by 360 degrees, it returns to its original position, which is counted as one instance of symmetry. Therefore, a square has rotational symmetry of order 4 because it can be rotated 4 times (at 90°, 180°, 270°, and 360°) and still look identical to its initial orientation.