5. The volumes of the two spheres are in the ratio 64 : 27. Find the ratio of their surface areas. 5. The volumes of the two spheres are in the ratio 64 : 27. Find the ratio of their surface areas. July 3, 2021 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related