Answer:
23.0579
( convert into degree measure )
----------------------------------------------------
23.0579 x 180 / n
( write as a product )
----------------------------------------------------
23.0579 x 1 / n x 180o
( calculate )
----------------------------------------------------
7.33956 x 180o
( calculate )
--------------------------------------------------------
SOLUTION
1321.1208
( I try my best po, i hope this is helpful, if this is let me know!, if this is misunderstanding or wrong report me or let me know :)), thank you! )