1) Go to https://www.imgonline.com.ua/eng/cut-photo-into-pieces.php[br] for cutting your photo into 9 square pieces (or more)[br][br]2) Download the zip file into your computer. [br] The images need to be moved to another folder after downloaded in the zip folder.[br][br]3) Open GeoGebra at https://www.geogebra.org/classic