Here is the extracted text: Q.47 A park is shaped like a rhombus. The length of the boundary of the park is 40 m. If one of the angles at the corner of the park is 60°, then find the area of the park (in square meters). a) \( 50\sqrt{3} \) b) \( 100\sqrt{3} \) c) \( 25\sqrt{3} \) d) Cannot be determined