00:01
In the question, we have been talked of the order of rotational symmetry.
00:04
So what is that? suppose you rotate a figure with 360 degrees of angle, then the number of times the figure reiterates itself is known as the rotational order of the rotational symmetry.
00:22
So i mean to see that.
00:24
Suppose this is a square.
00:26
We rotate this by 360.
00:28
So after every 90 degree this figure will repeat itself.
00:33
So therefore the rotational order would be four.
00:37
Rotational similar order of the rotational symmetry will be four.
00:40
Now for the question we have this figure and in this figure you see i'll try to quickly make this figure and then i'll show you what i want to say in this question.
00:51
Now this this is shaded at this portion.
00:55
This shaded over here and also it's shaded the side.
01:02
Now when you rotate, now when you rotate what will happen is that first you rotate by 120 degrees.
01:13
So this, this side, this dark side will go over here.
01:18
This light side will go over here.
01:19
This dark side will go over here and this light will go over here...