What is a right angle?

A right angle is defined as an angle that measures exactly 90 degrees. This measurement is crucial in various geometric concepts and constructions, as it represents a quarter of a full rotation and is fundamental in defining perpendicular lines.

In many real-world applications, right angles are commonly found in architecture and engineering, where precise measurements are vital for stability and design. This specific degree measurement distinguishes a right angle from other types of angles, such as acute angles, which are less than 90 degrees, or obtuse angles, which measure more than 90 degrees but less than 180 degrees. Understanding the definition and properties of right angles is essential for solving many problems in geometry and for constructing geometric figures accurately.