# Thread: Writing a formal proof for this statement?

1. ## Writing a formal proof for this statement?

Given a quadrilateral, prove that its diagonals bisect one another if and only if it is a parallelogram

2. ## Re: Writing a formal proof for this statement?

Parallelogram - Wikipedia, the free encyclopedia

3. ## Re: Writing a formal proof for this statement?

Originally Posted by pickslides

Parallelogram - Wikipedia, the free encyclopedia
I read the article, and it did mention about the intersecting, but it doesn't provide me win enough information on how to prove it.

4. ## Re: Writing a formal proof for this statement?

Hi Crayola, thanks for the reply.

Maybe do an extended google search yourself?

5. ## Re: Writing a formal proof for this statement?

Originally Posted by pickslides
Hi Crayola, thanks for the reply.

Maybe do an extended google search yourself?
I did before posting it on here, no such luck

6. ## Re: Writing a formal proof for this statement?

I managed to do a search and found this.
Lesson Proof: The diagonals of parallelogram bisect each other

7. ## Re: Writing a formal proof for this statement?

Originally Posted by pickslides
Thanks a lot!