Show that the lines `x-7y-22=0, 3x+4y+9=0` and `7x+y-54=0` form a right angled isosceles triangle.

The straight lines x+y-4=0, 3x+y-4=0 and x+3y-4=0 form a triangle, which is

The straight lines x+y-4=0, 3x+y-4=0 and x+3y-4=0 form a triangle, which is

The straight lines x+y-4=0, 3x+y-4=0 and x+3y-4=0 form a triangle, which is

The straight lines x+y=0, 3x+y-4=0 and x+3y-4=0 form a triangle, which is :

Show that the straight lines x+y=0, 3x+y-4=0 and x+3y-4=0 form an isosceles triangle.

The straight lines 3x+y-4=0,x+3y-4=0 and x+y-4=0 form a triangle which is :

The straight lines x+y=0, 3x+y-4=0 and x+3y-4=0 form a triangle which is (A) isosceles (B) right angled (C) equilateral (D) scalene

The straight lines x+y=0, 3x+y-4=0 and x+3y-4=0 form a triangle which is (A) isosceles (B) right angled (C) equilateral (D) scalene