The ﬁgure shows two circles, A and B, overlapping. The ratio of the shaded area of A to the unshaded area of A to the shaded area of B is 2 : l : 8.  Radius of A is 6.3 cm. <hr> Find the area of circle B. (Take π = $$\frac{22}{7}$$) <br>Area of circle B is <input min="0" type="number" id="imp6pg191q9_1" class="lineinput" placeholder="?"> $$cm^2$$