00:01
Now in part a i want to find the angle between small hand and the large hand and a clock face at 1 .30.
00:11
So here is part of a clock and i've marked in here you can see between 12 and 1, 1 and 2, 2 and 3.
00:20
The angle is 30 degrees.
00:23
Makes sense because the angle down here is a right angle and there are three equal sections.
00:32
Now, at 1 .30, the big hand is pointing straight down at 6.
00:45
And the small hand is not on the line going towards 1, which you might think, because the small hand also moves all the time.
00:57
And in half an hour, it's halfway between 1 and 2.
01:02
So the small hand then is midway between the one and the two.
01:10
In other words, 15 degrees here and here.
01:16
So that means this angle is 45 degrees...