Mathematics & Computer Science
Brahmagupta's theorem on cyclic quadrilaterals
628 CEBrahmaguptaBrahmasphutasiddhantaPan-Indian / unspecified
628 CE
In a cyclic quadrilateral with perpendicular diagonals, a line through their intersection perpendicular to one side bisects the opposite side.
- Dated
- 628 CE
- As scholars put it
- 628 CE
- Originator
- Brahmagupta
- Source text
- Brahmasphutasiddhanta
- Region
- Pan-Indian / unspecified
- Discipline
- Mathematics & Computer Science
- Evidence
- Documented
- Confidence
- High
- Verification
- Reference-cited
Meanwhile in the West
Still taught as 'Brahmagupta's theorem'.
Fair to say
Credited by name in modern geometry.
Path to modern innovation
A classic result of Euclidean geometry.
References
- 1Brahmasphutasiddhanta
Further reading
Corrections and additional sources: edit IND-242 on GitHub.