1. An isosceles triangle has exactly ________ line of symmetry.

2. An equilateral triangle has exactly ________ lines of symmetry.

3. A square has ________ lines of symmetry.

4. A rectangle has ________ lines of symmetry.

5. A circle has an unlimited or infinite number of lines of symmetry.

6. The letter H has both ________ and ________ line of symmetry.

7. A scalene triangle has ________ line of symmetry.

8. A parallelogram has ________ line of symmetry.

9. In symmetry, one half of the object is the mirror image of the other half.

10. The process of creating a symmetrical design by folding and cutting a paper is an example of reflection symmetry.