00:06
Okay, what you're asked to do here is to determine whether the object has line symmetry and whether it has a rotational symmetry.
00:16
So in this particular case, if you think about rotational symmetry, what it's asking is, can i rotate that shape in any way less than a full complete rotation and have it look exactly like itself? so here would be 90 degree rotational symmetry.
00:36
But it's not positioned exactly like it was.
00:38
So it doesn't look, it would have to look identical to this for it to have rotational symmetry.
00:45
90 degree, it does not have rotational symmetry.
00:47
180 degrees, no rotational symmetry.
00:50
It would have to look exactly like this.
00:52
So there is no rotational symmetry for this one.
00:56
But there is line symmetry.
01:00
For line symmetry, you want to ask yourself, is there a, i call it a fold...