Why are the sums of the exterior angles of a triangle equal to the sum of the two opposite interior angles? - Quora
![Sum of Interior Angles and Exterior Angles of Polygons: Triangles, Quadrilaterals, and Pentagons | Ryosuke University Sum of Interior Angles and Exterior Angles of Polygons: Triangles, Quadrilaterals, and Pentagons | Ryosuke University](https://j-tradition.com/wp-content/uploads/2020/12/eryhs15.jpg)
Sum of Interior Angles and Exterior Angles of Polygons: Triangles, Quadrilaterals, and Pentagons | Ryosuke University
![The Measure of an Exterior Angle of a Triangle is Equal to the Sum of the Measure of the two__.[SOLVED] The Measure of an Exterior Angle of a Triangle is Equal to the Sum of the Measure of the two__.[SOLVED]](https://d138zd1ktt9iqe.cloudfront.net/media/seo_landing_files/the-measure-of-an-exterior-angle-of-a-triangle-is-equal-to-the-sum-of-the-measure-of-the-two-01-1621433039.png)
The Measure of an Exterior Angle of a Triangle is Equal to the Sum of the Measure of the two__.[SOLVED]
![This proves how the sum of the interiror angles of a triangle always equal to 180 degrees :) | Triangle angles, Equality, Quadrilaterals This proves how the sum of the interiror angles of a triangle always equal to 180 degrees :) | Triangle angles, Equality, Quadrilaterals](https://i.pinimg.com/originals/66/68/4b/66684b47dab98e16be8efd09d46ff75a.png)