Subject :IMO Class : Class 8
Four circles of equal radii are centred at the four vertices of a square. These 4 circles touch a fifth circle of same radius placed inside the square. The ratio of the shaded area of the circles to the unshaded area of the circles is _____.
A1 : 3
B2 : 3
C3 : 4
D2 : 5
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Ans 1:
Class : Class 8
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Ans 2:
Class : Class 8
Ans 3:
Class : Class 8
B