How many degrees are in a right angle?

In geometry, when two rays meet each at a common point, they form an angle. The point of meeting of two rays is known as the vertex. Angles are measured in degrees. Some common types of angles are acute angles, right angles, and obtuse angles.

When two straight lines intersect each other at 90˚ or are perpendicular to each other at the intersection, they form the right angle. Examples of right angles are all around us. We can see right angles in the corners of a room, book, cube, windows and at several other places.

A vertical and a horizontal line make most common right angles. However, diagonal lines intersecting each other also form right angles. If you draw the diagonals of a square, a rhombus or a kite, the angle at the intersection is 90 degrees and is, therefore, a right angle.