Välistenkulmien

Välistenkulmien is a Finnish term that translates to "angles between" or "internal angles." In geometry, it refers to the angles formed inside a polygon, where two adjacent sides meet at a vertex. For a simple polygon, the sum of these internal angles is determined by the number of sides. The formula for the sum of internal angles in a polygon with n sides is (n-2) * 180 degrees. For example, a triangle (n=3) has a sum of internal angles equal to (3-2) * 180 = 180 degrees, while a quadrilateral (n=4) has a sum of (4-2) * 180 = 360 degrees.

In the context of trigonometry and surveying, välistenkulmien can also refer to angles measured between lines of sight or directional bearings. These are crucial for determining precise locations and distances, often used in navigation, construction, and mapping. The concept is fundamental to understanding the shape and properties of geometric figures and plays a vital role in various scientific and practical applications.