Line Symmetry Test Questions for 8th Grade Math Students

📚 Quick Study Guide

• 🔍 Definition: A figure has line symmetry if it can be folded along a line so that the two halves match exactly. This line is called the line of symmetry.
• 📏 Identifying Lines of Symmetry: Look for lines that divide the figure into two identical mirror images.
• 📐 Examples:
  • A square has 4 lines of symmetry.
  • A rectangle has 2 lines of symmetry.
  • A circle has infinite lines of symmetry.
  • An isosceles triangle has 1 line of symmetry.
• ➕ Transformations: Reflections across the line of symmetry map the figure onto itself.
• 💡 Tips: Use a mirror or fold the paper to visualize the lines of symmetry.

Practice Quiz

1. What is the line of symmetry?
1. A line that divides a shape into equal areas.
2. A line that divides a shape into two congruent halves.
3. A line that divides a shape into similar shapes.
4. A line that is parallel to one side of the shape.
2. How many lines of symmetry does a regular pentagon have?
1. 3
2. 4
3. 5
4. 6
3. Which of the following letters has a vertical line of symmetry?
1. J
2. P
3. A
4. Q
4. How many lines of symmetry does a parallelogram have that is not a rhombus?
1. 0
2. 1
3. 2
4. 4
5. Which shape has infinite lines of symmetry?
1. Square
2. Circle
3. Rectangle
4. Triangle
6. A butterfly has line symmetry. Where is its line of symmetry typically located?
1. Horizontally across its body
2. Diagonally from wing tip to wing tip
3. Vertically down the center of its body
4. Around the edge of its wings
7. If a square is folded along one of its lines of symmetry, what shapes are created?
1. Two triangles
2. Two rectangles
3. Two squares
4. Two trapezoids