question_answer

After rotating by \[{{60}^{o}}\] about a centre, a figure looks exactly the same as at its original position. At what other angle will this happen for the figure?

A)  \[{{120}^{o}}\]      

B)         \[{{100}^{o}}\]      

C)         \[{{150}^{o}}\]      

D)         \[{{90}^{o}}\]