WITHOUT GIVING ANY PREVIOUS HINTS, YOU HAVE USED POINTS LIKE 'K', 'N', 'I' AND 'M' WHILE SAYING GK, FN AND MF. SIMILARLY WHILE SAYING 'OUTER MOST POINT OF A CIRCLE' YOU SHOULD HAVE BEEN MORE PRECISE AS THERE ARE TWO SUCH POINTS FOR A POINT LYING OUTSIDE THE CIRCLE. I THINK THERE ARE EASIER WAYS OF DIVIDING A LINE INTO 3 EQUAL PARTS.
BUT MOST IMPORTANT: DID YOU MEASURE THE THREE ANGLES CREATED AT 'A'? CAN YOU PROVE THAT THE ANGLES ARE OF EQUAL MEASURE?