The radius of a sphere is increased by 10%. Prove that the volume will be increased by 33.1% approximately. The radius of a sphere is increased by 10%. Prove that the volume will be increased by 33.1% approximately. July 3, 2021 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related