Results 1 to 2 of 2

Math Help - another adv. geometry problem

  1. #1
    Newbie
    Joined
    Apr 2008
    Posts
    2

    another adv. geometry problem

    A silo is composed of a hemishpere and a cylinder. The total height of the silo is 20 meters and the diamtere of the silo is 8 meters. What is the volume of the silo to the nearest cubic meter?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Behold, the power of SARDINES!
    TheEmptySet's Avatar
    Joined
    Feb 2008
    From
    Yuma, AZ, USA
    Posts
    3,764
    Thanks
    78
    Quote Originally Posted by personplacething123 View Post
    A silo is composed of a hemishpere and a cylinder. The total height of the silo is 20 meters and the diamtere of the silo is 8 meters. What is the volume of the silo to the nearest cubic meter?
    The Diameter of the sphere is 8 meters so its radius is 4 meters.

    So the height of the cylinder is 16meters

    So the total volume is

    Volume of the cylinder + 1/2 Volume of the sphere

    V=\pi(4m)^2(16m)+\frac{1}{2}\cdot \frac{4}{3}\pi(4m)^3

    V=64\pi(m)^3+\frac{128\pi}{3}m^3=\frac{320\pi}{3}m  ^3
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. My Geometry Problem
    Posted in the Geometry Forum
    Replies: 1
    Last Post: August 6th 2011, 07:16 PM
  2. Geometry problem help!
    Posted in the Geometry Forum
    Replies: 2
    Last Post: March 31st 2010, 10:15 PM
  3. geometry problem
    Posted in the Geometry Forum
    Replies: 1
    Last Post: April 16th 2009, 08:35 PM
  4. Replies: 2
    Last Post: January 10th 2009, 06:49 AM
  5. help this geometry problem
    Posted in the Geometry Forum
    Replies: 2
    Last Post: March 26th 2008, 04:10 PM

Search Tags


/mathhelpforum @mathhelpforum