A right angle is formed by two half lines, which are perpendicular and have the same origin, what we will call the angle’s vertex. A right angle measures 90 degrees (90°).

Right Angle

The right angles can be found in different geometric figures, such as triangles, rectangles, or squares. Right angles also appears in other types of angles, e.g. in the flat angle, which is formed by two right angles or the complete angle, which is formed by four right angles.

What is the amplitude of a right angle?

A right angle has a measure or amplitude of 90°. It has a radian measure of 2 Pi radians.

Characteristics of right angles

Some of the most important characteristics of the right angles are the following ones:

  • It is an angle that measures 90°.
  • Two perpendicular lines form it.
  • It is between two lines that share the exact origin and vertex.
  • It is mainly represented by a small square, without the need to place the measure (90°).
  • It is the most easily identified from all kinds of angles.
  • It is the most commonly seen angle in our daily life.