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Sun & Rain Works

Est. 2005 · Eugene, OR

Bretschneider's formula — MetaHistoryBook

No machine-readable author provided. Jitse Niesen assumed (based on copyright claims). · Public domain · via Wikimedia Commons

Bretschneider's formula

theorem

Wikipedia ↗Wikidata (Q537518) ↗

Details

Instance of: theorem
Based on: law of cosines
named after: Carl Anton Bretschneider
statement describes: quadrilateral

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