The radii of two circles are 19cm and 9cm respectively. Find the radius of the circle which has a circumference equal to the sum of the circumferences of the two circles. The radii of two circles are 19cm and 9cm respectively. Find the radius of the circle which has a circumference equal to the sum of the circumferences of the two circles. October 6, 2020 Category: Chapter 12 - Areas Related to Circles , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related