Which of the following statements are true or false for a rectangle?
(i) It has two pairs of equal opposite sides.
(ii) It has all its sides of equal length.
(iii) Its diagonals are equal.
(iv) Its diagonals bisect each other.
(v) Its diagonals are perpendicular to each other.
Find which of the following are not true:
1. All the sides of a rhombus are always equal in length.
2. All the sides of a parallelogram are always equal in length.
3. Diagonals of a parallelogram are equal in length.
4. Diagonals of a square are equal in length.
5. Diagonals of a rectangle are equal in length.