Sum of exterior angles of a polygon is 360°.

So, so Sum of exterior angles of triangle, quadrilateral, pentagaon, hexagon, etc. is the same , 180°.


Let's see examples of Triangle and Quadrilateral 8.jpg


Thus in polygons of any number of sides,

Sum of external angles is always 360°.


  1. Chapter 3 Class 8 Understanding Quadrilaterals
  2. Concept wise

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.