Talk:Bretschneider's formula

Revision as of 22:35, 26 January 2011 by Azjps (talk | contribs)
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Does it apply to all quadrilaterals, cyclic and non-cyclic?

Yes it does; I believe it's a special case of Brahmagupta's Formula. azjps (talk) 02:35, 27 January 2011 (UTC)
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