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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:

  • 1
    $$ {2\over ({\sqrt{2}+1})R}$$
  • 2
    $$ {1\over {\sqrt{2}}}R$$
  • 3
    $$ {(\sqrt{2}-1)R}$$
  • 4
    $$ {\sqrt{2}R}$$
  • Show Answer
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Answer : 3. "$$ {(\sqrt{2}-1)R}$$"

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