A piece of wire 20 cm long is bent into the from of an arc of a circle, subtending an angle of 60° at its centre. Find the radius of the circle. A piece of wire 20 cm long is bent into the from of an arc of a circle subtending an angle of 60° at its centre. Find the radius of the circle. November 25, 2020 Category: Chapter 12 - Areas Related to Circles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related