How many degrees are in a right angle?

A right angle is defined as an angle that measures exactly 90 degrees. This measurement is standard in geometry and is crucial for various applications, such as construction, design, and trigonometry, where angles play a significant role.

Understanding that a right angle divides a circle into four equal parts helps to reinforce this. Since a full circle comprises 360 degrees, dividing it by four gives 90 degrees for each right angle. Thus, the measurement of 90 degrees is fundamental in establishing the relationship between different types of angles, such as acute angles (less than 90 degrees) and obtuse angles (greater than 90 degrees but less than 180 degrees). Recognizing these distinctions is essential for anyone studying mathematics or dealing with angles in practical situations.