![]() The plane has this property except for lines.ĮXERCISE 1 a Identify all translations, rotations and reflections of the plane that map a line onto itself.ī Which of the transformations in part a map a particular point P on to another particular point Q on. The same as every other point on the circle − no other figure in Thus every point on a circle is essentially It can also be done by a reflection in the diameterĪOB bisecting POQ. This canīe done by a rotation through the angle θ = POQ about Thus every diameter of the circle is an axis of symmetry.Īs a result of these symmetries, any point P on a circleĬan be moved to any other point Q on the circle. Reflection in the line AOB reflects the circle onto itself.
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