Show that the straight lines `x^2+4xy+y^2=0 ` and the line x-y=4 form an equilateral triangle .

Show that the straight line x^2-4xy+y^2=0 and x + y = 3 form an equilateral triangle.

Show that the line x^(2)-4xy+y^(2)=0 and x+y=3 from an equilateral triangle.

Show that the lines x^2-4xy+y^2=0 and x+y=1 form an equilateral triangle and find its area.

Show that the lines x^2-4xy+y^2=0 and x+y=1 form an equilateral triangle and find its area.

Show that the lines x^2-4xy+y^2=0 and x+y=3 form an equilateral triangle and find its area.

Show that the lines x^2-4xy+y^2=0 and x+y=1 form an equilateral triangle and find its area.

Show that the straight lines represented by 3x^2+48xy+23y^2=0,3x-2y+13=0 form an equilateral triangle of area (13)/(sqrt(3)) sq. units