ICSE Class 8 Answered

Area of field = Area of triangle AFB+ Area of triangle AGE + area of triangle CHK+ area of rectangle BFHC +area of rectangle DJGE+ Area of triangle DJK

Now,

Area of triangle AFB===40

Area of triangle AGE===80 

Area of triangle CHK===48 

Area of triangle DJK===40 

Area of rectangle BFHC===80 

Area of rectangle DJGE===300 

Area of field=40+80+48+40+80+300=588