Posted by Anonymous on Thursday, December 9, 2010 at 10:19am.
E And C are mid points od line AD and line DB; line AD is congruent to line DB and angle A is congruent to angle 1. What do you do to prove that ABCE is a isosceles trapezod ??

geometry  Henry, Friday, December 10, 2010 at 3:11pm
Check your previous posting.