This application of Editorial Editex S.A. Calculate areas and volumes of different polygons / geometric bodies. It includes the following sections:
 - Theory: contains a document in PDF format with a summary of contents.
 - Practice: it allows calculating areas and volumes, deducing formulas used in the calculation when necessary.
 - Test: allows you to perform a self-assessment with 10 test exercises.
 - Problems: this section is intended to solve problems, one solved as an example and another 5 proposed to the user.