Gaṇitānanda pp 171-175 | Cite as

Brahmagupta’s Formulas for the Area and Diagonals of a Cyclic Quadrilateral

  • K. RamasubramanianEmail author


Let ABCD be a plane (convex) quadrilateral with sides ABBCCD and DA equal to abc and d, respectively. Let the figure be drawn in such a manner that we may consider, according to the traditional terminology, the side BC to be the base (bhū), the side AD to be the face (mukha), and the sides AB and DC to be the flank, sides (bhujas or arms) of the quadrilateral.

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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Cell for Indian Science and Technology in Sanskrit, Department of Humanities and Social SciencesIndian Institute of Technology BombayMumbaiIndia

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