Write an expression for the area of the dashed region in the figure below. Use more than one method to arrive at the answer. Substitute \(p = 6\), \(r = 3.5\), and \(s = 9\), and calculate the area.
Answer:
The area of the shaded region is given by:
If \(p = 6\), \(r = 3.1\), and \(s = 10\), then the area of the shaded region is ____________ sq.units.