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Chapter 7 vocab

Chapter 7 - 7.1-7.6 vocabulary

QuestionAnswer
isometry a transformation that oreserves lengths and angle measures. aka rigid transformation
transformation the operation that maps, or moves a preimage onto an image
reflection a type of transformation that uses a line that acts like a mirror called the line of reflection with an image reflected in the line
reflection theorem a reflection is an isometry
line of symmetry a line that a figure in the plane has if the figure can be mapped onto itself by a reflection in a line
rotation a type of transformation in which a figure is turned about a fixed point called the center of rotation. rays drawn from the center of rotation to a point and its image form an angle called the angle of rotation
rotation theorem a rotation is an isometry
rotational symmetry a figure in the plane has rotational symmetry if the figure can be mapped onto itself
Created by: jumpthemoon
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