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Subject :IMO    Class : Class 10
Two circles with radii a and b respectively touch each other externally. Let c be the radius of a circle that touches these two circles as well as a common tangent to these two circles. Then ___.

(A)

(B)

(C)

(D) None of these

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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