After rotating by 60° about a centre, a figure looks exactly the same as its original position. At what other angles will this happen for the figure

Take a clock and fix its minute hand at 12. Record the angle turned through by the minute hand from its original position and the time that has passed, in the following table : What do you observe about T and A ? Do they increase together ?

(a) Can you now tell the order of the rotational symmetry for an equilateral triangle ? (b) How many position are there at which the triangle looks acactly the same when rotated about its centre by 120^(@) ?

Two identical ball bearing in contact with each other and resting on a frictionless table are hit head on by another ball bearing of the same mass moving initially with a speed V shown in the figure. If the collision is elastic, which of the folloiwng shown in the figure is a possible result after collision ?

Which of the following figures have rotational symmetry about the marked point (xx) give the angle of rotation and order of the rotation of the figures.

Which of the following figures have rotational symmetry about the marked point (xx) give the angle of rotation and order of the rotation of the figures.

Which of the following figures have rotational symmetry about the marked point (xx) give the angle of rotation and order of the rotation of the figures.

Which of the following figures have rotational symmetry about the marked point (xx) give the angle of rotation and order of the rotation of the figures.