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 Related Terms
 Reflection:  A transformation that "flips" a figure over a mirror or reflection line.
Reflection Line: A line that acts as a mirror in the form of a perpendicular bisector so that corresponding points are the same distance from the mirror.
Transformation: The mapping, or movement, of all the points of a figure in a plane according to a common operation.
Rotation: A transformation that turns a figure about a fixed point at a given angle and a given direction.
Dilation: A transformation that changes the size of an object, but not the shape.
Translation: A transformation that "slides" each point of a figure the same distance in the same direction.
Isometry: A transformation that keeps the size and shape of geometric figures the same.