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# Write a two- column proof to show RSTW is a parallelogram using the method that states......?

Write a two-column proof to show RSTW is a parallelogram using the method that states that if one pair of opposite sides is both parallel and congruent then the quadrilateral is a parallelogram.

-Given angle WRS is congruent to angle STW

angle RSW is congruent to angle TWS

Prove: RSTW is a parallelogram.

This link has a picture of the parallelogram.

http://tinypic.com/view.php?pic=1111c0m&s=4

I need help with this one guys. Thank you so much!

Feel free to explain to me how to do this problem.

### 2 Answers

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- Anonymous1 decade agoFavorite Answer
use properties of a parallelogram link

and the second link for proofs

good luck

Source(s): http://www.mathopenref.com/parallelogram.html http://www.regentsprep.org/rEGENTS/mathb/1b/theore...- Login to reply the answers

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