Two opposite sides of a quadrilateral are the same length. The diagonals of the quadrilateral are also the same length. Prove the quadrilateral is a trapezoid.
(In reply to re(2): Solution
by Dej Mar)
Sadly when I read this I saw a trapezium, or I believe it is more precisely called an 'iscoseles trapezium'. That might have been a better term to have employed in the review process.
Posted by brianjn
on 2008-04-18 10:10:31