00:02
Let's orient each of the following drawings so that the lowest ranked group is towards the rear, and then assign an r or s configuration.
00:10
For an r configuration, we'll have a clockwise rotation, and for an s configuration, we have a counterclockwise rotation.
00:34
So for a, we've got 1, 2, 3, and 4.
00:53
So we're asked to rotate this so that the lowest priority is at the rear.
01:02
So this would be 1, 2, 3, 4.
01:12
We can see here that this is a clockwise rotation.
01:20
We're going this way here.
01:24
This is clockwise.
01:28
Therefore, this is an r configuration.
01:32
For b, go with the given configuration here.
01:46
And we have 1, 2, 3, 4.
01:51
Let's rotate this so that the lowest priority is in the rear.
01:58
And in this case, for b, the lowest priority is already in the rear...