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, indicating a quarter of a full rotation, which is 360 degrees. Right angles are often seen in various applications, such as in the corners of squares and rectangles, where the sides meet at exactly these angles.

Understanding the measurement of a right angle is crucial, as it serves as a baseline for comparing other angles. For example, angles that measure less than 90 degrees are considered acute, while those that exceed 90 degrees but are less than 180 degrees are referred to as obtuse. The significance of the right angle extends beyond theoretical geometry; it is widely used in construction, design, and various fields of engineering.