Reflection is a transformation which has a mirror image about a line as a two way mirror. A line which plays the role of two way mirror to give the image of given object is called the axis of reflection.
Rotation is a transformation in which each point on the object is rotated through an angle about a fixed point. The fixed point is called the centre of rotation and the angle is called the angle of rotation.
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The Translation is a transformation in which each point of the given object is displaced through definite distance and direction. The displacement is defined by a translation vector (a, b).
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