Can someone please help me with this question please, and I know that you can reach the answer by subtracting the shaded area with the are os sector, but I do not how to reach it till there. The answer is 10.9m^2

The owners of four companies competing for a contract are shown in the table below. if a report is released that advocates company b, which of the people having funded the report should result in the most skepticism? company owner of company company a jake adams company b company c company d debby smith henry rose rhonda baker o a. jake adams o b. rhonda baker o c. debby smith o d. henry rose