a right circular cylinder just enclosed a sphere of radius R find 1.surface area of the sphere 2.curved surface area of the cylinder and ratio of the areas obtained in 1 and 2
Attachments:
Answers
Answered by
11
) Surface area of sphere = 4πr2
(ii) Height of cylinder = r + r = 2r
Radius of cylinder = r
CSA of cylinder = 2πrh
= 2πr (2r)
= 4πr2
(iii) required ratio= surface area of sphere/ csa of cylinder
=4πr2/4πr2
=1/1
Therefore, the ratio between these two surface areas is 1:1.
(ii) Height of cylinder = r + r = 2r
Radius of cylinder = r
CSA of cylinder = 2πrh
= 2πr (2r)
= 4πr2
(iii) required ratio= surface area of sphere/ csa of cylinder
=4πr2/4πr2
=1/1
Therefore, the ratio between these two surface areas is 1:1.
Attachments:
thakursiddharth:
Plz mark as brainliest
Similar questions