Answer :
let the two lines are ax+by+c=0 and ax+by+c'=0
then distance between them is =mode of[tex] \frac{c-c'}{ \sqrt{ a^{2}+ b^{2} } } [/tex]
then distance between them is =mode of[tex] \frac{c-c'}{ \sqrt{ a^{2}+ b^{2} } } [/tex]