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Geometry-McNerney

Rotations, Reflections and Translations

QuestionAnswer
R90 (x,y)= ? Rotation of 90 degrees (-y,x)
R180 (x,y)=? Rotation of 180 degrees (-x,-y)
R270 (x,y)=? Rotation of 270 degrees (y,-x)
What kind of rotation is a counter-clockwise rotation? Positive (+1)
What kind of rotation is a clockwise rotation? Negative (-)
Vertical angles are always Equal or congruent
Translation Slide
Reflection Flip
Rotation Turn or Twist
True or False? In a reflection, line segments stay the same size. True
True or False? In a reflection, the measurement of the angles change. False. They degrees of angles stay the same.
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
True or False? The length of line segments stays the same in a rotation. True
True or False? In a rotation, the measurement of the angles change. False
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
Created by: carozza
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