" If two circles with centres "C_(1),C_(2)" and same radius "'" y cut each other orthogonally,then "

Two circles with centres C_(1),C_(2) and same radius r cut each other orthogonally,then r is

If two circles of the same radius r and centres at (-1,2) and (3,6) respectively cut orthogonally,then the value of r is

Draw circles with centres A,B and C each of radius 3 cm, such that each circle touches the other two circles.

If the circles of same radius a and centres (2,3), (5,6) cut orthogonally , then a=

If the circles of same radius a and centre (2, - 3), (-4, 5) cut orthogonally , then a =

If the circles of same radius 'a' and centres at (2, 3) and (5, 6) cut orthogonally, then a =

The centres of two circles C_(1) and C_(2) each of unit radius are at a distance of 6 unit from each other. Let P be the mid-point of the line segment joining the centres of C_(1) and C_(2) and C be a circle touching circles C_(1) and C_(2) externally. If a common tangent to C_(1) and C passing through P is also a common tangent to C_(2) and C, then the radius of the circle C, is

The centres of two circles C_(1) and C_(2) each of unit radius are at a distance of 6 unit from each other. Let P be the mid-point of the line segment joining the centres of C_(1) and C_(2) and C be a circle touching circles C_(1) and C_(2) externally. If a common tangent to C_(1) and C passing through P is also a common tangent to C_(2) and C, then the radius of the circle C, is

The centres of two circles C_(1) and C_(2) each of unit radius are at a distance of 6 unit from each other. Let P be the mid-point of the line segment joining the centres of C_(1) and C_(2) and C be a circle touching circles C_(1) and C_(2) externally. If a common tangent to C_(1) and C passing through P is also a common tangent to C_(2) and C, then the radius of the circle C, is