How many degrees are in a right angle?

A right angle is defined as an angle that measures exactly 90 degrees. This measurement is a fundamental concept in geometry and is widely used in various applications, including construction, design, and engineering.

The designation of 90 degrees is integral to the Cartesian coordinate system and various geometric figures, such as rectangles and squares, which rely on right angles for proper dimensions and angles.

Understanding right angles is crucial for students, as they serve as the building blocks for more complex geometric concepts. In contrast, angles measuring 45 degrees represent acute angles, while 180 degrees denote a straight angle, and 360 degrees signify a full rotation. Each of these angles has its specific characteristics but does not match the definition of a right angle.