Definition:Triangle (Geometry)/Right-Angled

Definition
A right-angled triangle is a triangle in which one of the vertices is a right angle.


 * RightTriangle.png

Note that in order to emphasise the nature of the right angle in such a triangle, a small square is usually drawn inside it.

Note the following nomenclature in the context of a right-angled triangle:

Also known as
A right-angled triangle is also often referred to as a right triangle.