Readers who are so passionate about mathematics can have real fun today! What about measuring angles and chords in circles? Well, today we are providing an online free and open source project where teachers, students and parents can make use of it! One can see it here.
There is no need for any tutorial as it is very easy to play with it. It is compatible with all operating systems and any electronic device which connects to the internet. Just press the question mark and have fun!