lihtnurk

Lihtnurk is an Estonian term that translates to "right angle" in English. It refers to an angle measuring exactly 90 degrees. This specific angle is a fundamental concept in geometry and is characterized by its two sides being perpendicular to each other. When two lines or planes meet at a right angle, they form a square corner.

The significance of a right angle is evident in numerous applications. In architecture and construction, right angles are crucial for ensuring the stability and structural integrity of buildings. Many everyday objects, such as doors, windows, and tables, are designed with right angles for practicality and aesthetics. In mathematics, right angles are essential for defining shapes like squares, rectangles, and cubes. The Pythagorean theorem, a cornerstone of Euclidean geometry, specifically relates the sides of a right-angled triangle. The symbol commonly used to denote a right angle is a small square at the vertex where the two lines meet. The presence of a right angle often simplifies calculations and measurements within geometric figures.