The ratio of the areas of two circles is 9:4. If the circumference of the smaller circle is , what is the perimeter of the larger circle?
(A)
(B)
(C)
(D)
Thanks
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The ratio of the areas of two circles is 9:4. If the circumference of the smaller circle is , what is the perimeter of the larger circle?
(A)
(B)
(C)
(D)
Thanks
The ratio of the areas of two circles is 9:4
The circumference of the smaller circle is given by the formula
The circumference of the larger circle is given by the formula
Therefore the correct answer is (D).
Thank you!!