kulmakulmat
Kulmakulmat are the measures of angles formed by two intersecting lines or segments that share a common endpoint. In Finnish geometry, they describe the corner-like openings found in polygons and other shapes, and they are a fundamental way to describe orientation and shape. Kulmakulmia are measured in degrees or radians, and they quantify how open or closed a corner is. The notation for an angle at a vertex B formed by points A–B–C is written as ∠ABC, and its size is the measure m∠ABC.
In a polygon with n sides, the sum of its interior kulmakulmat is (n−2)×180 degrees. Exterior kulmakulmat,
These angles are central in many fields, including architecture, computer graphics, surveying, and navigation, where angular