Results 1 to 2 of 2

Math Help - Volume of revolution

  1. #1
    Newbie
    Joined
    Aug 2009
    Posts
    1

    Volume of revolution

    Hi,
    I am new to this forum but I was just wondering If I can get some answers for my maths assignment which I am really struggling with. For my assignment I have to design three water bottles with the volumes of 1L, 600mL and 300mL. The bottles all have to be the same shape with the same proportion. The bottles need to have at least three different functions. I have my 1L bottle designed with all the curves. I used the volume of revolution to determine the 1L volume of the bottle. But, I am having trouble with finding the 600mL and 300mL and their functions being in the same ratio with the 1L. I was just wondering is there any rule that will help me find the volumes and have the same ratio as the 1L bottle i designed.
    Any help would be appreciated
    Thanks heaps
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Bruno J.'s Avatar
    Joined
    Jun 2009
    From
    Canada
    Posts
    1,266
    Thanks
    1
    Awards
    1
    Hello Hels,

    It might be a good idea to try and understand why you can't calculate the volume of the 600 ml bottle while you can calculate the volume of the 1L one. Your technique should apply to both cases; if it doesn't then you don't have the right technique.

    An n dimensional object, if it is expanded to r times its original size, will have r^n times its original volume. For instance a circle that is twice the radius of another circle will have four times the area; a ball will have eight times the volume of a ball of half its radius.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. volume of revolution
    Posted in the Pre-Calculus Forum
    Replies: 5
    Last Post: April 13th 2011, 05:53 AM
  2. Volume of Revolution
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 16th 2009, 04:44 PM
  3. Volume of revolution
    Posted in the Calculus Forum
    Replies: 1
    Last Post: April 5th 2009, 06:37 PM
  4. Volume by revolution
    Posted in the Calculus Forum
    Replies: 1
    Last Post: February 3rd 2009, 03:37 PM
  5. Volume of revolution
    Posted in the Calculus Forum
    Replies: 1
    Last Post: September 22nd 2008, 11:09 AM

Search Tags


/mathhelpforum @mathhelpforum