Results 1 to 2 of 2

Thread: Parallel Lines

  1. April 19th 2008, 05:28 PM #1
    stellina_91
    stellina_91 is offline
    Junior Member
    Joined
    Feb 2008
    Posts
    60

    Parallel Lines

    Show that AB is not parallel to CD in the diagram, giving all reasons.

    I am not certain of how I would set this out, could someone please help me?

    Thank you.
    Attached Thumbnails Attached Thumbnails Parallel Lines-angles5.jpg  
    Follow Math Help Forum on Facebook and Google+
  2. April 19th 2008, 05:41 PM #2
    Plato
    Plato is offline
    MHF Contributor
    Joined
    Aug 2006
    Posts
    16,972
    Thanks
    767
    Awards
    1
    MHF Donor
    The alternate interior angle theorem?
    Follow Math Help Forum on Facebook and Google+
« Collinear Points | Parallel Lines. »

Similar Math Help Forum Discussions

  1. Parts of parallel lines are parallel is a postulate or theorem?
    Posted in the Geometry Forum
    Replies: 6
    Last Post: February 24th 2011, 01:26 AM
  2. Geometry problem prove lines are parallel, cyclic quadrilaterals,other parallel lines
    Posted in the Geometry Forum
    Replies: 1
    Last Post: March 14th 2010, 01:22 PM
  3. Parallel lines
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: February 19th 2010, 11:41 PM
  4. Parallel lines
    Posted in the Geometry Forum
    Replies: 1
    Last Post: April 13th 2009, 12:42 PM
  5. Tangent Lines, Parallel Lines, and Normal Lines
    Posted in the Calculus Forum
    Replies: 2
    Last Post: January 25th 2009, 08:41 PM

Search Tags


/mathhelpforum @mathhelpforum