ok.. as you have suggested, here are the problems:
1.The equations of the sides of a quadrilateral are x+4y-6=0 , 4x-y+4=0,
x+4y+2=0, 8x-2y+13=0. Show that it is a rectangle and find its area..
2.Show that the lines x-y-8=0, 3x+2y+1=0, x-y-3=0 and 2x+3y+24=0 are the sides of an isosceles trapezoid and find its area.
weee... i do hope you will help me pls... thanks!!!