The term "triangular" refers to a shape that has three sides and three angles, commonly known as a triangle. Triangles can be classified into different types based on their angles, such as acute, right, and obtuse triangles. They are fundamental in geometry and are used in various fields, including architecture and engineering. In addition to its geometric meaning, "triangular" can describe anything that has a three-pointed structure or arrangement. For example, a triangular trade involves three regions or countries exchanging goods. This concept is often seen in economics and history, illustrating complex trade relationships among nations.