Question

91. The ratio of the volume of the sphere and its surface
area is:
(a) 4r:3
(b) 3r: 4
(c) 3r: 1
(d)r:3
​

Answer 1

ANSWER:

let the radius of the sphere=r

Now,

area of sphere = 4πr^2

and,

volume of sphere =4/3πr^3

ratio of the volume and of the area of the sphere is,

volume of sphere/ area of sphere=

4/3πr^3/4πr^2

= r/3

therefor,. r:3 is the correct answer

Answer 2

Answer:

r : 3

Step-by-step explanation: