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Which of the following is NOT necessarily true for every parallelogram?

Class 9Properties of a ParallelogramGeometry — Quadrilaterals
  • ADiagonals are equal
  • BOpposite sides are parallel
  • COpposite angles are equal
  • DDiagonals bisect each other

Step-by-Step Solution

Diagonals are equal only in a rectangle (a special parallelogram), not in a general parallelogram.
Answer: A) Diagonals are equal

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