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12 Cards in this Set
- Front
- Back
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What is a rotation?
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A circular movement.
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What is the angle of rotation?
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The angle of rotation is a measurement of the amount, the angle, by which a figure is rotated counterclockwise about a fixed point,often the center of a circle.
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What is the line of reflection?
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The line of reflection is the perpendicular bisector of the segment joining every point and its image. A line reflection creates a figure that is congruent to the original figure and is called an isomentry
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What's the angle of rotation for this shape?
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The angle of rotation is 90 degrees.
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Does this picture have reflection symmetry?
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Yes this picture does have rotation symmetry.
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Where's the line of reflection symmetry?
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The line of reflection symmetry goes straight down the middle .
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How many lines of symmetry does a rectangle have?
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A rectangle has 2 lines of symmetry.
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Whats the rotation symmetry for this shape?
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120 degrees, 180 degrees, 360 degrees
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Translation symmetry
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Translations include only slides taking an image to the place of another. No reflection or rotation.
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Is this rule reflection or rotation? (X,Y)---> (-X,Y)
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Reflection
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Is this rule rotation or reflection (X,Y), (Y,-X)
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Rotation
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Is this rule rotation or reflection (x,y), (X+4, Y-2)
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Translation
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