TriGeo

 is an interactive tool designed to help you understand triangles and their properties in a clear and visual way. Instead of just reading about geometry, you can actually build your own triangles by entering their angles and sides, and then explore each property step by step.

Once your triangle is drawn, you can choose to highlight a single property at a time — such as the mediana (median), bisectriz (angle bisector), mediatriz (perpendicular bisector), or altura (altitude). The app guides you visually, showing exactly how each element is constructed and explaining its role inside the triangle. This makes it easier to connect the theory with what you see on the screen.

The interface is simple and focused on learning, making it perfect for students, teachers, or anyone curious about geometry. Whether you want to check your homework, prepare a lesson, or simply experiment with different angles to see how properties change, Geometry Helper makes the process quick, clear, and enjoyable — all directly from your browser, without any installation.