Indian Mathematics: Geometry Contributions

Brahmagupta is widely regarded as the father of Indian geometry for his contributions to the field, including his work on the Pythagorean theorem and his development of the cyclic quadrilateral theorem.

Brahmagupta developed the concept of the cyclic quadrilateral, which is a quadrilateral whose vertices lie on a circle. He also developed a formula for the area of a cyclic quadrilateral.

Brahmagupta developed the concept of the Brahmagupta quadrilateral, which is a quadrilateral whose diagonals are perpendicular to each other. He also developed a formula for the area of a Brahmagupta quadrilateral.

Bhaskara II developed the concept of the Bhaskara circle, which is a circle that passes through the three vertices of a triangle and is tangent to the incircle of the triangle.

Brahmagupta developed the concept of Brahmagupta's formula, which is a formula for finding the area of a cyclic quadrilateral.

Brahmagupta's theorem states that the sum of the squares of the two diagonals of a parallelogram is equal to the sum of the squares of its four sides. This theorem is named after Brahmagupta, who first discovered it in the 7th century AD.

Bhaskara II developed the concept of Bhaskara's formula, which is a formula for finding the area of a triangle.