Question

In the given figure, the radius of each outer circle is a, then the radius of the inner circle is

• A. $(\sqrt 2+1)$
• B. $(a\sqrt 2+1)$
• C. $(\sqrt 2-1)$
• D. $(a\sqrt 2-1)$

Answer 1

Answer: (D)

$(a\sqrt 2-1)$

Answer 2

The correct option is (D): $(a\sqrt 2-1)$.