The number of circles which touches the three lines 2x-3y+4=0 ,x+y-5=0 and 6x-9y+7=0 is

The number of circles that touches all the three lines x+y-1=0, x-y-1=0 and y+1=0 is

The number of circles that touch all the straight lines x+y-4=0, x-y+2=0 and y=2 , is

The locus of the centre of circles which touch the lines 6x-8y+5=0 and 6x-8y+13=0 is 6x-8y+k=0 then k=

Find the radius of a circle which touches two lines 3x-4y-6=0 and 6x-8y+1=0.

Number of circles touching all the lines x-2y+1=0,2x+y+3=0 and 4x-8y+3=0 is

Find the equation of the circle which touches the lines 4x-3y+10=0 and 4x-3y-30=0 and whose centre lies on the line 2x+y=0 .

2x+y=0 is the equation of a diameter of the circle which touches the lines 4x-3y+10=0 and 4x-3y-30=0 The centre and radius of the circle are

The equation of circle which touches the line x+3y-2=0 and 3x+9y-2=0, also the point of contact an first line is (-1,1), is

Circumference of the circle touching the lines 3x+4y-3=0,6x+8y-1=0