The points A (2, 0), B (9, 1), C (11, 6) and D (4, 4) are the vertices of a quadrilateral ABCD. Determine whether ABCD is a rhombus or not.
Midpoint of AC =
Midpoint of BD =
Midpoint of AC is not equal to midpoint of BD.
Hence diagonals do not bisect each other. Hence it is not a rhombus.