A farmer had a plot in the shape of a parallelogram. He divided into three equal parts, each of which was a separate parallelogram. He then gave his son one-third of the land. The son, who realized that the district in which he lived had no school, decided to set one school up in his plot, given to him by his father.

Question

A farmer had a plot in the shape of a parallelogram. He divided into three equal parts, each of which was a separate parallelogram. He then gave his son one-third of the land. The son, who realized that the district in which he lived had no school, decided to set one school up in his plot, given to him by his father. 
(i) Show how the proposal of the farmer can be implemented, with the help of a diagram. How much part of the land does the son get? Justify the proposal.