Mathematics - Circle Question with Solution | TestHub

MathematicsCircleGeneralMedium2 min

MathematicsMediumsingle choice

The equation of four circles are $(x \pm a)^{2} + (y \pm a)^{2} = a^{2}$ . The radius of a circle touching all the four circles is

Options:

Answer:

A

Solution:

Radius of smallest circle is

$r + a = a 2 r = a 2 - a$

$A n o t h erc i rc l e \Rightarrow r = a 2 + a$

Stream:JEESubject:MathematicsTopic:CircleSubtopic:General

⏱ 2m

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