00:01
This is our clock.
00:03
We are here at the 22nd minute.
00:06
What we're actually being asked for is what is the circumference covered from the initial position to this place.
00:16
Now, what we need, what we really need is the angle in radiance of this position.
00:22
Because the circumference of a circle is found by multiplying the radius times the angle in radiance.
00:29
The angle has to be in radiance in order to apply this form.
00:31
So to find the angle, we can use a rule of three because we know that the complete circle is 2 pi.
00:41
2 pi radiance is a complete circle, but we also know that the complete clock is 60 minutes.
00:48
So if 2 pi radiance is 60 minutes, then how many radiance are there in 22 minutes? so this is the first part.
01:00
We need to find this angle.
01:02
And it's simply we multiply 22 times 2 pi.
01:05
So 22 times 2 pi...