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The equation of the four circles are (x ...

The equation of the four circles are `(x pm a)^2 + (y pm a)^2 = a^2`. The radius of the smallest circle, which touches all the four circles, is:

A

`2sqrt2a`

B

`(sqrt2-1)a`

C

`(sqrt2+1)a`

D

`(2+sqrt2)a`

Text Solution

Verified by Experts

The correct Answer is:
B
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MODERN PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -MCQs LEVEL - II
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