140. The ratio between exterior angle and interior angle of a regular polygon is 1:5. Find the number of sides of the polygon. 140. The ratio between exterior angle and interior angle of a regular polygon is 1:5. Find the number of sides of the polygon. July 18, 2021 Category: Chapter 3 - Understanding Quadrilaterals , Chapter 4 - Practical Geometry , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related