We Find the Area of circle with this formula: A= πr^2 If we find the area of circle it will be: A=3.14 x (4cm)^2=3.14 x 16cm^2=50.24cm^2 Now if we find the area of the rectangle it is: A=3cm x 2cm=6cm^2 And finally, we have subtract the area of rectangle from the area of circle A(shaded)=50.24cm^2 - 6cm^2= 44.24cm^2 I hope this helped! Good luck :)