The equation of four circles are `(x+-a)^2+(y+-a2=a^2` . The radius of a circle touching all the four circles is `(sqrt(2)+2)a` (b) `2sqrt(2)a` `(sqrt(2)+1)a` (d) `(2+sqrt(2))a`

Four circles each with radius 2 touches the axes, then the radius of the largest circle touching all the four circles, is

Consider four circles (x+-1)^(2)+(y+-1)^(2)=1 Find the equation of the smaller circle touching these four circles.

Three equal circles each of radius r touch one another.The radius of the circle touching all the three given circles internally is (2+sqrt(3))r(b)((2+sqrt(3)))/(sqrt(3))r((2-sqrt(3)))/(sqrt(3))r(d)(2-sqrt(3))r

The equation of a circle is x^(2)+y^(2)=4. Find the center of the smallest circle touching the circle and the line x+y=5sqrt(2)

Four circles each with radius 2 touch both the axes then the radius of the largest circle touching all the four circles is

The radius of the circle passing through the points (1, 2), (5, 2) and (5, -2) is : (A) 5sqrt(2) (B) 2sqrt(5) (C) 3sqrt(2) (D) 2sqrt(2)

Find the equation of the circle with: Centre (a,a) and radius sqrt(2)a

The equation of the circle touching the lines |y| = x and having radius sqrt(2) is :

Find the equation of the circle with : Centre (1, 1) and radius sqrt(2) .