Q. No. 46-50 are based on Case Study-II, you have to answer any (4) four questions. Case Study - IIA farmer has a field in the shape of trapezium, whose map with scale $1\,\mathrm{cm}=20\,\mathrm{m}$, is given below :The field is divided into four parts by joining the opposite vertices.Based on the above information, answer any four of the following questions :