There are five concentric circle. which are equally distanced from eac
Right Answer is: A
Given side of the inner most square is √72
diagonal of inner most circle is = √72 x √2= √144=12 cm
12 cm is diameter of innermost circle also.
we have to find out the diameter of outermost cirle.
∴distance between the inner most and the outermost circle = 2.25*4 = 9 cm
∴diameter of the outermost circle = 9+ diameter of the innermost circle +9
= 9+12+9 = 30 cm
Since the diameter of the outer most circle = diagonal of the square inscribed in it
∴diagonal of the square inscribed in the outermost circle= 30
side√2 = 30 cm
side = 30/√2 cm
required area = side2 =