Question

volume of two spheres are in the ratio 125:64. then find the ratio of their surface areas

Answer 1

Solution:-
Let the radius of bigger sphere be 'R' and of the smaller sphere be 'r'
So, ratio of their volumes = 4/3πR³ : 4/3πr³ = 125 : 64
R³ : r³ = 125 : 64
R : r = 5 : 4
Now, total surface area of sphere = 4πr²
4πR² : 4πr²
= R² : r² 
= 5² : 4²
Ratio of their surface areas = 25 : 16
Answer.

Answer 2

Answer:

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