Which of the following is need not be always true for a parallelogram?

1.	Which of the following is need not be always true for a parallelogram?1. Opposite sides are parallel and equal2. Opposite angles are Equal3. Diagonals bisect each other4. Diagonals are equal
Answer» Correct Answer - Option 4 : Diagonals are equal The correct answer is Diagonals are equal. A parallelogram is a two-dimensional geometrical shape, whose sides are parallel to each other. It is a quadrilateral where the pair of parallel sides are equal in length. The interior opposite angles of a parallelogram are equal in measure. Sum of adjacent angles of a parallelogram is equal to 180 degrees. The diagonals of a parallelogram bisect each other. Area of parallelogram = Base x Height Perimeter of parallelogram = 2 x (Sum of adjacent sides length) Special Parallelograms: A square and a rectangle are two shapes which have similar properties of a parallelogram. Both have their opposite sides equal and parallel to each other. Diagonals of both the shapes bisect each other. If all the sides of a parallelogram are congruent or equal to each other, then it is a rhombus. If there is one parallel side and the other two sides are non-parallel, then it is a trapezium. A three-dimensional shape has its faces in parallelogram shape, is called parallelepiped.

Which of the following is need not be always true for a parallelogram?1. Opposite sides are parallel and equal2. Opposite angles are Equal3. Diagonals bisect each other4. Diagonals are equal

Answer» Correct Answer - Option 4 : Diagonals are equal

The correct answer is Diagonals are equal.

A parallelogram is a two-dimensional geometrical shape, whose sides are parallel to each other.
It is a quadrilateral where the pair of parallel sides are equal in length.
The interior opposite angles of a parallelogram are equal in measure.
Sum of adjacent angles of a parallelogram is equal to 180 degrees.
The diagonals of a parallelogram bisect each other.
Area of parallelogram = Base x Height
Perimeter of parallelogram = 2 x (Sum of adjacent sides length)

Special Parallelograms:
- A square and a rectangle are two shapes which have similar properties of a parallelogram.
  - Both have their opposite sides equal and parallel to each other.
  - Diagonals of both the shapes bisect each other.
- If all the sides of a parallelogram are congruent or equal to each other, then it is a rhombus.
- If there is one parallel side and the other two sides are non-parallel, then it is a trapezium.
A three-dimensional shape has its faces in parallelogram shape, is called parallelepiped.