Question

a right circular cylinder just encloses a sphere of radius r find,
1) volume of sphere
2) volume of cylinder
3) which has the greater value between them​

Answer 1

Step-by-step explanation:

(i) SA of sphere =4πr

2

(ii) Height =r+r=2r

radius =r

⇒Curved Surface Area=2πrh=2πr(2r)=4πr

2

(iii) Ratio =

4πr

2

4πr

2

= 11 or 1:1