How many degrees are in a right angle?

How many degrees are in a right angle?

• A. 45
• B. 90
• C. 180
• D. 270

Answer: (B)

A right angle is defined as an angle that measures exactly 90 degrees. In geometry, right angles are often represented by a square corner, such as the corner of a piece of paper or the intersection of two perpendicular lines. This measurement is fundamental in various fields, including construction, carpentry, and mathematics, serving as the standard angle for many applications. The other measurements offered—45 degrees, 180 degrees, and 270 degrees—represent different types of angles. A 45-degree angle is considered an acute angle, which is smaller than a right angle. A 180-degree angle is a straight angle, which forms a straight line. Meanwhile, a 270-degree angle is a reflex angle, which is greater than a straight angle but less than a full rotation of 360 degrees.

A right angle is defined as an angle that measures exactly 90 degrees. In geometry, right angles are often represented by a square corner, such as the corner of a piece of paper or the intersection of two perpendicular lines. This measurement is fundamental in various fields, including construction, carpentry, and mathematics, serving as the standard angle for many applications.

The other measurements offered—45 degrees, 180 degrees, and 270 degrees—represent different types of angles. A 45-degree angle is considered an acute angle, which is smaller than a right angle. A 180-degree angle is a straight angle, which forms a straight line. Meanwhile, a 270-degree angle is a reflex angle, which is greater than a straight angle but less than a full rotation of 360 degrees.