OSPIN ACADEMY Class 7 গণিত অনুশীলনী 11.2 Class 7 Mathematics Exercise 11.2 Solution in Assamese And English , SCERT Assam Class 7 Maths Exercise 11.2 Chapter QR code S1Y8F6 and Chapter QR code T6B4K7 Perimeter And Area (পৰিসীমা আৰু কালি)