If the radius of a sphere is doubled , its surface area will become
Answers
Answered by
2
Answer:
very nice profiles ❤️❤️❤️❤️❤️❤️
Attachments:
Answered by
2
Answer:
Let, the radius of the sphere be r cm
Surface area of the original sphere =4πr2
New radius of the sphere 2r cm
Surface area of the new sphere =4π(2r)2
=4π×4r 2
Therefore, required ratio 4πr2
4π×4r 2
=4:1
Now, Volume of original sphere = 34 πr 3
Volume of new sphere = 3 π(2r) 3
Required ratio = 34 πr 3 34
π(2r) 3 =8:1
Similar questions