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Q: In the given figure if each of the outer circles have radii ‘R’, then the radius of the inner circle will be:

A. $$ {2\over ({\sqrt{2}+1})R}$$
B. $$ {1\over {\sqrt{2}}}R$$
C. $$ {(\sqrt{2}-1)R}$$
D. $$ {\sqrt{2}R}$$
Answer» D. $$ {\sqrt{2}R}$$


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