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There are two concentric circles whose a...

There are two concentric circles whose areas area in the ratio of 9:16 and the difference between their diameters is 4 cm. What is the area of the outer circle ?

A

`32 cm^2`

B

`64 pi cm^2`

C

`36 cm^2`

D

`48 cm^2`

Text Solution

Verified by Experts

The correct Answer is:
B
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