Correct Answer -
Given lines
3x-4y+4=0 …(i)
6x-8y-7=0
or 3x-4y-7/2=0….(ii)
It is clear that lines (i) and (ii) are parallel.
Now distance between them i.e.,
`d=abs((4+7//2)/sqrt(9+16))=abs(((8+7)/2)/5)=3//2`
`therefore` Distance between these line=Diameter of these circle
`therefore` Diameter of the circle=3/2
and radius of the circle=3/4
