1
00:00:00,750 --> 00:00:08,060
Let's do this question in triangle pick arm angle is equal to 60 degree angle, Q is equal to 40 degree,

2
00:00:08,370 --> 00:00:12,750
then the exterior angle formed by producing cure is equal to.

3
00:00:13,320 --> 00:00:18,840
All right, so let's produce cure and we get an exterior angle over here.

4
00:00:18,840 --> 00:00:23,290
That's angle p, r e and you tell me what P R is equal to.

5
00:00:23,460 --> 00:00:28,110
It's a very basic question, but it'll help you solidify your foundation.

6
00:00:28,410 --> 00:00:31,320
Tobii, the exterior angle property of triangles.

7
00:00:31,590 --> 00:00:36,870
We know that b r e is equal to angle B plus angle Q, right.

8
00:00:37,020 --> 00:00:42,900
Because the exterior angle is equal to the sum of the interior opposite angles.

9
00:00:43,230 --> 00:00:48,950
Therefore angle p r E is equal to 60 plus 40, which gives you one hundred degree.

10
00:00:48,960 --> 00:00:51,840
And the correct answer is option C.