Question

if ratio of volumes of two sphere is 1:512, then ratio of their surface area is

Answer 1

Answer:

1:804.57 is the answer......

R^3/r^3=1/512

so R=1 and r=8

surface area of sphere =4πr^2=

4×22/7×8×8=804.57

and area of smaller sphere =1

so ratio=1:805