Rotations, Reflections and Translations
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| R90 (x,y)= ? Rotation of 90 degrees | (-y,x)
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| R180 (x,y)=? Rotation of 180 degrees | (-x,-y)
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| R270 (x,y)=? Rotation of 270 degrees | (y,-x)
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| What kind of rotation is a counter-clockwise rotation? | Positive (+1)
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| What kind of rotation is a clockwise rotation? | Negative (-)
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| Vertical angles are always | Equal or congruent
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| Translation | Slide
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| Reflection | Flip
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| Rotation | Turn or Twist
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| True or False? In a reflection, line segments stay the same size. | True
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| True or False? In a reflection, the measurement of the angles change. | False. They degrees of angles stay the same.
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| True or False? A reflection maps a line to a line, a ray to a ray, a segment to a segment and an angle to an angle. | True
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| True or False? The length of line segments stays the same in a rotation. | True
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| True or False? In a rotation, the measurement of the angles change. | False
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| True or False? A rotation maps a line to a line, a ray to a ray, a segment ot a segment and an angle to an angle. | True
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Created by:
carozza
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