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1. How many lines of symmetry are there in an equilateral triangle?

2. How many lines of symmetry are there in a square?

3. How many lines of symmetry are there in a rectangle?

4. How many lines of symmetry are there in a regular pentagon?

5. How many lines of symmetry are there in a regular hexagon?

13. How many lines of symmetry are there in an isosceles triangle?

14. How many lines of symmetry are there in a scalene triangle?

15. How many lines of symmetry are there in a rhombus?

16. How many lines of symmetry are there in a parallelogram?

17. How many lines of symmetry are there in a quadrilateral?

18. The order of rotational symmetry of an equilateral triangle is

19. The order of rotational symmetry of a square is