Which statement can be used to prove that a given parallelogram is a rectangle? The diagonals of the parallelogram are perpendicular.
All the sides of the parallelogram are equal in measure.
The consecutive angles of the parallelogram are supplementary.
The diagonals of the parallelograms are congruent.
The answer in this question is B The diagonals of the parallelogram are congruent because that's only possible for right angle quadrilaterals. We can say that the diagonals of the parallelogram are congruent. The diagonals of this figures have the same size and shape.
