Here you learn the basic geometric terms (planimetrics): the types of triangles and polygons, the parts of a circle and the important lines and segments such as a median of a triangle and a tangent to a circle. There are three levels: 1) the first one about elements of triangles; 2) the second about types of polygons; 3) the last level is about the circle and its parts. The app is translated into 9 languages, including English, Spanish, and many others. So you can learn the names of the geomet