question_answer 18)

After rotating by \[\text{6}0{}^\circ \] about a centre, a figure looks exactly the same as its original position. At what other angles will this happen for the figure?

Answer:

                The other angles are \[\text{12}0{}^\circ \], \[\text{18}0{}^\circ \], \[\text{24}0{}^\circ \], 300° and \[\text{36}0{}^\circ \].