Symbiosis National Aptitude Test SNAP 2012 Paper

In a special racing event, the person who enclosed themaximum area would be the winner and would get ₹ 100 every square metre of area covered by him/her. Jonnson, who successfully completed the race and was the eventual winner, enclosed the area shown in the figure below. What is the prize money won?
(Note : The arc from C to D makes a complete semi-circle).
AB = 3 m, BC = 10 m, CD = BE = 2 m