Question

find the shaded area in a circle of raduis 4cm and 2cm

Answer 1

hi friend. You can find the area of a circle by using (pi)r^2. Where r is radius

Answer 2

if i understood the question exactly , you want to find the area between these two circles;
ok you know that area of a circle is got by : pi*r^2
now you can find area of both circles then say area of shaded = area of circle1(r=4) - area of circle2(r=2)