[{"title": "Area of a Rectangle", "content": "Find the area of a rectangle with length 6 cm and width 10 cm. Area = length × width.", "solution": "A = 6 × 10 = 60 cm²"}, {"title": "Perimeter of a Rectangle", "content": "Find the perimeter of the same rectangle. P = 2(length + width).", "solution": "P = 2(6 + 10) = 2(16) = 32 cm"}]