This post about is the Circle theorems. Formulas for the radius of a circle, the diameter of a circle, the circumference (perimeter) of a circle. Therefore It also include the length of chord of a circle. Because of length of chord angle also varies. Similarly other properties also involve.
Explore, prove, and apply important properties of circles that have to do with things like arc length, radians, inscribed angles, and tangents.
Circle Theorem