[" If two circles with centres "C_(1),C_(2)" and same "],[" radius "'r'" 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

Two circles with centres at C_(1) , C_(2) and having radii r_(1) , r_(2) will intersect each in two real distinct points if , and only if :

Two circles with centers A and B and radius 2 touch each other externally at C.A third circle with center C and radius 2 meets the other two at D,E Then area ABDE is

Three circles with centres C_(1),C_(2) and C_(3) and radii r_(1),r_(2) and r_(3) where *r_(-)1

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

A relation R is defined on the set of circles such that " C_(1)RC_(2)implies circle C_(1) and circle C_(2) touch each other externally", then relation R is

A relation R is defined on the set of circles such that " C_(1)RC_(2)implies circle C_(1) and circle C_(2) touch each other externally", then relation R is

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

The curves 2x^(2) + 3y^(2) = 1 and cx^(2) + 4y^(2) = 1 cut each other orthogonally then the value of c is: