1
00:00:00,590 --> 00:00:05,050
Let's do this question, A and B are tangents to the given circle.

2
00:00:06,050 --> 00:00:14,270
Angle ACB is equal to 60 degrees, find angle it be all right, pause the video, give it a try and

3
00:00:14,270 --> 00:00:15,430
then let's do it together.

4
00:00:17,180 --> 00:00:18,030
All right, we're back.

5
00:00:18,050 --> 00:00:25,220
Let's do it together and we'll be a B is equal to 60 degrees also right angle Déby this one also will

6
00:00:25,220 --> 00:00:30,020
be 60 degrees because this angle is 60 degrees as per second tangent theorem.

7
00:00:30,020 --> 00:00:30,390
Right.

8
00:00:30,650 --> 00:00:31,450
Why is that so?

9
00:00:31,790 --> 00:00:37,270
Over here you have AB ABS is making an angle with a tangent 80 over here.

10
00:00:37,430 --> 00:00:41,930
So this angle will be equal to the angle substandard by AB, which is 60 over here.

11
00:00:41,930 --> 00:00:42,220
Right.

12
00:00:42,590 --> 00:00:45,200
This is also 60 in a similar manner.

13
00:00:45,200 --> 00:00:48,820
You can see that angle, a beauty.

14
00:00:48,920 --> 00:00:52,640
That's this angle over here that will also be equal to 60 degrees.

15
00:00:52,640 --> 00:00:58,460
Right, because of the same reason you have another tangent and that's forming with the second angle

16
00:00:58,460 --> 00:01:01,480
equal to the angle neck by this second over here.

17
00:01:01,790 --> 00:01:04,000
But this angle also is equal to 60 degrees.

18
00:01:04,280 --> 00:01:06,320
Therefore, we find that angle.

19
00:01:06,320 --> 00:01:10,570
EDB is equal to 180 minus 60, minus 60.

20
00:01:10,610 --> 00:01:14,120
That's 180 minus 120, which is equal to 60 degrees.

21
00:01:14,120 --> 00:01:15,290
And that is your answer.
