Find the measure of the angle between the lines `x + y + 7 = 0 and x - y +1 = 0`.

Find the bisector of acute angle between the lines x+y - 3 = 0 and 7x - y + 5 = 0

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 area of the triangle formed by the lines y-x = 0, x + y = 0 and x-k = 0.

Find the acute angles between the st. lines : 2x-y+3=0 and x+y-2=0 .

Find angles between the lines sqrt3 x+ y = 1 and x + sqrt3y = 1.

Find the acute angles between the st. lines : sqrt3 x+y =1 and x+sqrt3 y=1 .

Find the acute angles between the st. lines : y-3x-5=0 and 3y -x +6= 0 .

The equation of the bisector of the acute angle between the lines 2x-y+4=0 and x-2y=1 is x-y+5=0 x-y+1=0 x-y=5 (d) none of these

Find the distance between the parallel lines : 4x - 3y -9 =0 and 4x - 3y - 24=0.