Two Equilateral Triangles Forming a Larger Equilateral Triangle

This GeoGebra example demonstrates how two equilateral triangles combine via geometric transformations into one larger equilateral triangle. Core concepts include equilateral triangle properties, rotation symmetry, reflection, angle equality and midpoint relations. Construction uses Point, Polygon, Mirror, Rotate, Translate, Intersect, Midpoint and Angle commands to generate multiple polygons and points. Suitable for middle and high school geometry lessons on triangle transformations.