Let the radius of the bigger circle,R = 6cm Let the radius of the smaller circle, r = 4cm Area of the shaded region= area of the bigger circle - area of the smaller circle Area of the smaller circle = πr^2 3.14×4×4 = 3.14×16 = 50.24cm^2 Area of the larger circle = πR^2 3.14×6×6 = 3.14×36 = 113.04cm^2 Therefore area of the shaded region = 113.04 - 50.24 = 62.8cm^2
