Symmetry,rotation, reflection,translation

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  • 1. MathsProject
  • 2. .Symmetry.Rotation.Translation.Reflection
  • 3. Symmetry
  • 4. What is line of symmetry• A line on which a figure can be folded so that both sides match.
  • 5. To be a line of symmetry, theshape must have two halvesthat match exactly.When you trace a heart onto apiece of folded paper,and then cut it out, the two halfhearts make a whole heart.The two halves are symmetrical.
  • 6. Which of these flags have aline of symmetry?United States of America Canada Maryland England
  • 7. What about these math symbols? Do they have symmetry?
  • 8. How many lines of symmetry to these regularpolygons have? Do you see a pattern?
  • 9. Rotation (Turn)• The action of turning a figure around a point or a vertex.
  • 10. Click thetriangle to Turning a figuresee rotation around a point or a vertex
  • 11. Translation (Slide)• The action of sliding a figure in any direction.
  • 12. Click the Octagonto see Translation. The act of sliding a figure in any direction.
  • 13. Reflection (flip) The result of a figure flipped over a line.
  • 14. Click on thistrapezoid toseereflection. The result of a figure flipped over a line.
  • 15. Which shapes show reflection, translation, or rotation?