Posted by **fredrick** on Saturday, October 27, 2007 at 6:31pm.

finish proof

given ABCD is an isoceles trapezoid with AD parallel to BC; DE=DC

prove ABED is a parallelogram

- geometry -
**drwls**, Saturday, October 27, 2007 at 6:37pm
Where are points E and F?

- geometry -
**drwls**, Sunday, October 28, 2007 at 1:48am
I should have just asked where point E is. There is no F mentioned; I was wring about that. The question makes sense if E lies along the extended line BCE

ABED is a parallelogram if BE = AD and is parallel to AD, AND if AB is parallel and equal to AB. That is what you have to prove.

Clearly CDE is an isosceles triangle appended to ABCD. Prove that the angle ADC is the same as DCE. This will prove that CE is an extension of BC.

## Answer this Question

## Related Questions

- geometry honors - Can you prove ABCD is a parallelogram based on the given ...
- Geometry - Write a two column proof: Given: ABCD is a parallelogram BQ is ...
- math - prove the following: given: ABCD is a trapezoid with bases BC and AD to ...
- Geometry - Given: ABCD is a parallelogram; <1 is congruent to <2 To Prove...
- geometry - I'm having trouble coming up with a proof regarding isoceles ...
- Geometry - I have four questions: 1. The area of trapezoid ABCD is 60. One base ...
- Math - Given a trapezoid ABCD with AD parallel to BC. The diagonals AC and BD ...
- Math - Given a trapezoid ABCD with AD parallel to BC. The diagonals AC and BD ...
- Geometry - I really need some help please!!!!! Am I on the right tract? Given: ...
- Geometry - Can some one please check these for me.Thanks Angle DEF is similar to...