Apotemi Açık Kitap is a free Android application that provides solutions to all the questions in the book. This education and reference app is developed by FERNUS and is available for free to all users.

The app is designed to help students who are studying from the book and need to check their answers or clear any doubts. The application contains all the solutions to the questions in the book, and the missing solutions are regularly updated within the app. This feature ensures that students always have access to the latest solutions and can rely on the app for accurate information.

Overall, Apotemi Açık Kitap is a helpful tool for students who need quick access to solutions and want to ensure that they are on the right track with their studies. The app is easy to use and provides accurate information, making it a valuable addition to any student's toolkit.