Lines of Symmetry I - Math Practice Worksheet (Grade 4 ... - Free Printable

I need to examine the third row more carefully. The shapes appear to be:
- A regular hexagon
- A regular octagon
- An equilateral triangle

Let me analyze each:

For the regular hexagon:
- As mentioned earlier, a regular hexagon has 6 lines of symmetry: three lines connecting opposite vertices and three lines connecting midpoints of opposite sides.

For the regular octagon:
- A regular octagon has 8 lines of symmetry: four lines connecting opposite vertices and four lines connecting midpoints of opposite sides.

For the equilateral triangle:
- An equilateral triangle has 3 lines of symmetry: each line connects a vertex to the midpoint of the opposite side.

Now I have analyzed all the shapes. Let me summarize my findings for each shape in the worksheet.

The lines of symmetry for each shape are:

First row (left to right):
1. Square: 4 lines of symmetry
2. Regular hexagon: 6 lines of symmetry
3. Regular pentagon: 5 lines of symmetry

Second row (left to right):
4. Parallelogram: 0 lines of symmetry (assuming it's not a special case like rectangle or rhombus)
5. Irregular pentagon: 0 lines of symmetry (based on its appearance)
6. Rhombus: 2 lines of symmetry

Third row (left to right):
7. Regular hexagon: 6 lines of symmetry
8. Regular octagon: 8 lines of symmetry
9. Equilateral triangle: 3 lines of symmetry

This completes the solution to the problem. Each shape's lines of symmetry have been identified based on geometric properties.