Vector Addition with Triangles

This example demonstrates vector addition using triangles, visually illustrating the geometric meaning of vector addition. Core math concepts include vectors, triangles, geometric construction, and the parallelogram law of vector addition. GeoGebra commands used are Vector for creating vectors u and v, Export_1 and Export_2 for exporting vector endpoints, add for vector addition, reset for resetting the graph, and w, subtract for auxiliary calculations. Suitable for high school students learning vectors and coordinate geometry, or university-level foundational mathematics instruction.