WEBVTT
00:00:00.840 --> 00:00:04.360
The figure shows the exterior angles of a given triangle.
00:00:04.840 --> 00:00:07.080
Find the sum of the exterior angles.
00:00:08.800 --> 00:00:23.000
The three exterior angles are 135 degrees, 116.6 degrees, and 108.4 degrees.
00:00:24.440 --> 00:00:29.120
We’ve been asked to calculate the sum of the three angles.
00:00:30.880 --> 00:00:41.040
This means we need to add 135, 116.6, and 108.4.
00:00:42.600 --> 00:00:49.600
Adding these three numbers gives us a total of 360 degrees.
00:00:51.040 --> 00:00:57.400
The sum of the exterior angles of the triangle is 360 degrees.
00:00:58.840 --> 00:01:07.440
We can go one step further here and say that the sum of the exterior angles of any triangle is equal to 360 degrees.