Question 11
Mr. Ba has a piece of land (as shown in the figure). The rectangular part of the land is used for planting trees, while the semicircular part is used as a water reservoir for irrigation. It is known that the perimeter of the rectangular planting area is 84 meters, and its width is half of its length. The diameter of the water reservoir is equal to the width of the planting area. The total area of Mr. Ba’s piece of land is:
