Question

The radii of two circles are and . Find the area of the circle which has its circumference equal to the difference of the circumferences of the given two circles.

A

B

C

D

Medium

Solution

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Correct option is
A

Given,
radii of the two circles= and
Difference of circumference=
                                   =
Now,
Let the radius of the circle be
Therefore,



Therefore,
Area of the circle=
                          =
                          =

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