👉 Semitangent is a term used in mathematics and geometry to denote an angle that is formed by two lines intersecting at a point. It is named after the Greek letter "sigma" (σ) which represents the first part of the word "semiperimeter". The semitangent can be thought of as half of the line segment between the intersection points on one side of the angle and the center of the circle that contains it, or equivalently, a point on the circle's circumference.
