The figure above shows \(2\) circles. The larger circle has center \(A,\) radius \(R\, \text{cm},\) and is inscribed in
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A. \(\dfrac2{\sqrt2+1}\)
B. \(\dfrac2{\sqrt2-1}\)
C. \(\dfrac2{2\sqrt2+1}\)
D. \(\dfrac{\sqrt2+1}{\sqrt2-1}\)
E. \(\dfrac{2\sqrt2+1}{2\sqrt2-1}\)
Answer: D
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