18. NCERT | Interpreting Patterns | Intext | Pg.154 | Q2

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.

 

 

 

The area of the shaded region is given by:

 

 

If \(p = 6\), \(r = 3.8\), and \(s = 10\), then the area of the shaded region is ____________ sq.units.