Looking at shape (f), I can see it's a circle with markings around its circumference. The image shows "Order of 2" written below it, which suggests that this shape has rotational symmetry of order 2. This means that if you rotate the shape by 180°, it will look identical to its original position, and then again at 360°.
This is interesting because a perfect circle has infinite rotational symmetry (order infinity), but the markings on this circle appear to be arranged in a way that creates only order 2 symmetry. The markings are likely positioned such that they repeat every 180° rotation.
Based on my analysis of all six shapes:
- Shape (a): Order of 4 (square rotated 45°)
- Shape (b): Order of 1 (isosceles right triangle)
- Shape (c): Order of 5 (regular pentagon)
- Shape (d): Order of 2 (double-headed arrow)
- Shape (e): Order of 2 (parallelogram)
- Shape (f): Order of 2 (circle with specific markings)
The solution to the problem is correctly shown in the image, with each shape having its order of rotational symmetry labeled beneath it.
Parent Tip: Review the logic above to help your child master the concept of rotational symmetry worksheet with answers.
