4.
What is line of symmetry• A line on which a figure can be folded so that both sides match.
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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.
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Which of these flags have aline of symmetry?United States of America Canada Maryland England
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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.
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Click thetriangle to Turning a figuresee rotation around a point or a vertex
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Translation (Slide)• The action of sliding a figure in any direction.
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Click the Octagonto see Translation. The act of sliding a figure in any direction.
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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?
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