Question

If the radius of a cylinder is doubled and the height remains same, the volume will be
A. doubled
B. halved
C. same
D. four times

Answer 1

Given : If the radius of a cylinder is doubled and the height remains same.

 

Let the radius of the cylinder be  r and the height of the cylinder be h.

So, Volume of cylinder = πr²h

Now , new radius = 2r

and new radius = h

Then ,

New Volume = π × (2r)² × h  

New Volume = π × 4r²h

New Volume = 4(πr²h)

Hence, the volume will be FOUR times.

HOPE THIS ANSWER WILL HELP YOU…..

Similar questions :

In a cylinder, if radius is halved and height is doubled, the volume will be

A. same

B. doubled

C. halved

D. four times

https://brainly.in/question/15912078

 

In a cylinder, if radius is doubled and height is halved, curved surface area will be

A. halved

B. doubled

C. same

D. four times

https://brainly.in/question/15912060

Answer 2

fourth times

pls mark me as brainliest