triangles are cyclic), and Brahmagupta's formula simplifies to Heron's formula. If the semiperimeter is not used, Brahmagupta's formula is K = 1 4 ( − a + b...

in his treatise Khandakhadyaka. Brahmagupta–Fibonacci identity Brahmagupta's formula Brahmagupta theorem Brahmagupta triangle Chakravala method List of...

obtained from Brahmagupta's formula or Bretschneider's formula by setting one of the sides of the quadrilateral to zero. Brahmagupta's formula gives the area...

Brahmagupta's interpolation formula is a second-order polynomial interpolation formula developed by the Indian mathematician and astronomer Brahmagupta...

area K of a cyclic quadrilateral with sides a, b, c, d is given by Brahmagupta's formula: p.24  K = ( s − a ) ( s − b ) ( s − c ) ( s − d ) {\displaystyle...

Assoc. Amer., p. 59, 1967 Brahmagupta theorem at ProofWiki Brahmagupta's Theorem at cut-the-knot Weisstein, Eric W. "Brahmagupta's theorem". MathWorld....

the generalized half angle formulas to give an alternative proof. Bretschneider's formula generalizes Brahmagupta's formula for the area of a cyclic quadrilateral...

The simplest form of Brahmagupta's formula for the area of a cyclic quadrilateral has a form similar to that of Heron's formula for the triangle area:...

(This formula is similar to Brahmagupta's formula, but it differs from it, in that a trapezoid might not be cyclic (inscribed in a circle). The formula is...

D. It was rediscovered by Brahmagupta (598–668), an Indian mathematician and astronomer, who generalized it to Brahmagupta's identity, and used it in his...