Exercise 5: Random Triangle and Vector Quadrilateral Exploration

This GeoGebra example demonstrates a randomly generated triangle and a quadrilateral constructed from related vectors, with data displayed in a table. The core mathematical concepts include triangles, vectors, rational numbers, general quadrilaterals, and isosceles triangle properties. The construction uses the Random command to generate random points or values, TableText to create a data table, and defines multiple objects such as segments a, b, c and their copies a_1, b_1, c_1, points A_1, B_1, C_1, D_1, lines g_1, g_2, g_3, and a button for interactive refresh. Suitable for middle or high school students learning geometry and vectors, and useful for classroom demonstrations of randomness combined with geometric properties.