Brahmagupta is widely regarded as the father of Indian geometry for his significant contributions to the field.

Brahmagupta's theorem is a remarkable result in geometry that relates the diagonals and sides of a cyclic quadrilateral.

Bhaskara II is credited with developing the chakravala method, a powerful technique for solving indeterminate quadratic equations.

Heron's formula provides a method for calculating the area of a triangle using its side lengths.

Aryabhata made significant contributions to the construction of regular polygons, including methods for constructing a regular pentagon and a regular hexagon.

The Triangle Sum Theorem is a fundamental result in geometry that relates the interior angles of a triangle.

Baudhayana is credited with developing the Sulvasutras, which contain geometric rules and formulas used in ancient India for various purposes, including construction and astronomy.

The Area of a Circle Formula provides a method for calculating the area of a circle using its radius.

Aryabhata is credited with introducing the concept of zero and its use in mathematics, which had a profound impact on the development of mathematics.

The Volume of a Sphere Formula provides a method for calculating the volume of a sphere using its radius.

Aryabhata is credited with developing the concept of trigonometric functions, which are essential in trigonometry and various other fields.

The Pythagorean theorem is a fundamental result in geometry that relates the sides of a right triangle.

Brahmagupta is credited with introducing the concept of negative numbers and their use in mathematics, which expanded the scope of mathematical operations.

Heron's formula provides a method for calculating the area of a triangle using its side lengths.

Aryabhata is credited with developing the concept of the decimal system, which revolutionized the way numbers are represented and calculated.