Answer:
64 : 27
Explanation:
If linear ratio is a : b , then
area ratio = a² : b²
volume ratio = a³ : b³
Given area ratio = 16 : 9 , then
linear ratio = : = 4 : 3
volume ratio = 4³ : 3³ = 64 : 27
6.5m questions
8.6m answers
: 
= 4 : 3