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

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- July 31st 2011, 06:56 PMCrayolaWriting a formal proof for this statement?
Given a quadrilateral, prove that its diagonals bisect one another if and only if it is a parallelogram

- July 31st 2011, 07:10 PMpickslidesRe: Writing a formal proof for this statement?
Google has plenty of help.

Heres some reading

Parallelogram - Wikipedia, the free encyclopedia - July 31st 2011, 07:20 PMCrayolaRe: Writing a formal proof for this statement?
- July 31st 2011, 07:22 PMpickslidesRe: Writing a formal proof for this statement?
Hi Crayola, thanks for the reply.

Maybe do an extended google search yourself? - July 31st 2011, 07:30 PMCrayolaRe: Writing a formal proof for this statement?
- July 31st 2011, 07:38 PMpickslidesRe: 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 - August 1st 2011, 02:17 PMCrayolaRe: Writing a formal proof for this statement?