All the sides of a rectangle and a rhombus are equal in length.
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.
Say True of False:
(a) Each angle of a rectangle is a right angle.
(b) The opposite sides of a rectangle are equal in length.
(c) The diagonals of a square are perpendicular to one another.
(d) All the sides of a rhombus are of equal length.
(e) All the sides of a parallelogram are of equal length.
(f) The opposite sides of a trapezium are parallel.