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

Answer

The shape drawn on the grid is a square. A square has all four sides equal in length and all four angles equal to 90 degrees. To find the order of rotational symmetry of a shape, you need to count how many times the shape looks exactly the same as its original position as it is rotated 360 degrees around its center. Let's consider a square: 1. If we rotate the square by 90 degrees clockwise (or anti-clockwise) around its center, it will look identical to its original position. 2. If we rotate it by another 90 degrees (total 180 degrees), it will again look identical. 3. If we rotate it by yet another 90 degrees (total 270 degrees), it will still look identical. 4. Finally, if we rotate it by the last 90 degrees (total 360 degrees), it returns to its exact original position. So, during a full 360-degree rotation, a square appears identical to its original orientation 4 times (at 90°, 180°, 270°, and 360°). Therefore, the order of rotational symmetry of a square is 4.