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1. |
There are two circles of different radii. The area of a square is 196 sq.cm, whose side is half the radius of the larger circle. The radius of the smaller circle is three-seventh that of the larger circle. What is the circumference of the smaller circle ? |
A. | 12 π cm |
B. | 16 π cm |
C. | 24 π cm |
D. | 32 π cm |
Answer» D. 32 π cm | |