Show that the point A (2,-2),B(14,10)C(11,13)and D(-1,1)are the vertices of a ranctangle

Show that the point A (2,-2),B(14,10)C(11,13)and D(-1,1)are the vertic

1.	Show that the point A (2,-2),B(14,10)C(11,13)and D(-1,1)are the vertices of a ranctangle
Answer»