A diagram of a right triangle labeled with sides "a," "b," and hypotenuse "c." It includes the trigonometric ratios sine, cosine, and tangent based on angle A.

Diagram of a right triangle showing sides, hypotenuse, and trigonometric ratios: sine, cosine, and tangent, based on the relationships between the angles and sides.

Right Angle

Category: Geometry Date: November 16, 2024

Definition of a Right Angle

A right angle in geometry is an angle that measures exactly 90 degrees, often represented by a small square at the vertex.