If radius b is double that of radius a, the area of the smaller circle to that of the larger circle is in proportion:
Answer : Option A
Explanation : Area of circle = Sr2
Required ratio = (1)2 : (2)2 = 1 : 4
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If radius b is double that of radius a, the area of the smaller circle to that of the larger circle is in proportion:
Area of circle = Sr2
Required ratio = (1)2 : (2)2 = 1 : 4