The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped intoit. find the ratio of surface areas of the original balloon to the resulting new balloon. Share with your friends Share 0 Pooja Khanna answered this Refer the following link : https://www.meritnation.com/ask-answer/question/the-radius-of-a-spherical-balloon-increases-from-7-cm-t/surface-areas-and-volumes/6295688 -1 View Full Answer Uthkarsh Ravindra Pai answered this = 4π72 = 49*4 = 196. s.a of sphere = 4πr2= 4π142 = 196*4 = 784 Ratio of 1st : 2nd = 196:784 = 1:4 thumbs up if u think i am right!! cheers!! 0
