Question

if height and radius of a cone of volume v is doubled . find volume of cone​

Answer 1

Answer:

Let, height of cone=h

Radius =r

Volume=v

 

Now, v=πr23h

As per condition if height and radius of the cone are doubled,

 

Then volume,

  v=π(2r)232h

 v=8.(πr23h)

Hence, if height and radius of the cone are doubled, then volume become eight times

Step-by-step explanation:

the correct answer is 8 times

Answer 2

Step-by-step explanation:

let the height = 2h

let the radius =2r

then the volume of cone=31πr2h

solutions =

=13π(2r)2(2h)

=8

hence volume of cone become 8 times