Results 1 to 2 of 2

Math Help - Truncated Prism

  1. #1
    Member
    Joined
    Sep 2006
    Posts
    134

    Truncated Prism

    A truncated prism has a square base of edge 5cm. Two adjacent lateral edges are 8 cm long each and other two lateral edges are 4cm long each. Find the total surface area and the volume.

    Help please, this is so difficult.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Grandad's Avatar
    Joined
    Dec 2008
    From
    South Coast of England
    Posts
    2,570
    Thanks
    1
    Hello reiward
    Quote Originally Posted by reiward View Post
    A truncated prism has a square base of edge 5cm. Two adjacent lateral edges are 8 cm long each and other two lateral edges are 4cm long each. Find the total surface area and the volume.

    Help please, this is so difficult.
    I think this solid looks like the one in the diagram I have attached.

    The faces are either rectangles (4 of them, all different) or trapezia (two of them both the same, like ABCD.) I'm sure you can work out their areas. (You will need to use Pythagoras' Theorem to find AB.)

    To get the volume, multiply the area of the uniform cross-section (that's ABCD) by the length (that's the distance front-to-back).

    Can you complete it now?

    Grandad
    Attached Thumbnails Attached Thumbnails Truncated Prism-untitled.jpg  
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. how many combinations if space is truncated
    Posted in the Statistics Forum
    Replies: 1
    Last Post: August 28th 2011, 04:18 PM
  2. A truncated pyramid.
    Posted in the Geometry Forum
    Replies: 4
    Last Post: May 8th 2011, 01:00 AM
  3. Truncated prior distribution
    Posted in the Advanced Statistics Forum
    Replies: 9
    Last Post: March 23rd 2011, 08:15 PM
  4. Truncated and Non-truncated distribution
    Posted in the Advanced Statistics Forum
    Replies: 7
    Last Post: July 27th 2009, 07:40 AM
  5. Truncated SVD
    Posted in the Advanced Algebra Forum
    Replies: 2
    Last Post: June 29th 2007, 10:07 AM

Search Tags


/mathhelpforum @mathhelpforum