Find the angle between the lines `x+3y-8=0 and 2x-3y+6=0`.

Find the angle between the lines x-2y+5=0 and x+3y-5=0 .

Find the angle between the lines x-2y+3=0 and 3x+y-1=0 .

Find the angle between the lines 3x=5 and 3x+5y-2=0

Find the angle between the lines 3x=5 and 3x+5y-2=0 .

Find the angle between the lines x-3y-4=0,4y-z+5=0 and x+3y-11=0,2y=z+6=0

If the acute angle between the lines 2x+3y-5=0 and 5x+ky-6=0 is (pi)/(4) ,then the value(s) of k is/are

Find the equation of thebisector of the angle between the lines 2x-3y - 5 = 0 and 6x - 4y + 7 = 0 which is the supplement of the angle containing the point (2,-1)

Find the acute angle between lines x + y = 0 and y = 0