Area of sector = 2 Pi R Square upon 360 into angles so 3.142 into 4 square into 60 upon 360 so it will come 3.142 into 16.68 points to answer will come 8.3 786 and next Austin dot dot dot dot upto two decimal place we will take 8.38 then there were three sectors so 8.38 into 325 point 136 CM we can take area of full figure = 203 by 4 into 6460 equal 16 into 1.732 feet is equal to 27.712 area of shaded region equals to 27.712 - 25.130 area of whole figure Magnus area of sector so 2.5 768 can come up to 10 decimal places we will take 2.58 thank you