00:01
In this question, the motive is to find out what we can call the given angles.
00:06
So, they are 0, now it is pi divided by 2 and then here it will be pi and now it is 3pi divided by 2 and at last it is 2pi.
00:20
So, all these angles collectively called as quadrantal angle.
00:26
Let's write over here q u a and then it is d r a n.
00:32
Now it will be t a l and here it is angles.
00:36
So this is the collective name for all such angles.
00:40
Here 0 is called as initial angle or 0 angle.
00:46
So here we can write initial.
00:48
Now it will be here angle.
00:51
Let us talk about the second angle given to us which is pi divided by 2.
00:57
So this can be called as right angle or quarter turn.
01:02
So here it will be right angle or we can say it is qu and then it is arter.
01:11
Now it will be turn.
01:13
Are n.
01:14
Then if we talk about the third angle which is pi then it is called as straight angle...