Which information is sufficient to show that a parallelogram is a rectangle? a . the diagonals bisect each other . b . the diagonals are congruent . c . the diagonals are congruent and perpendicular . d . the diagonals bisect each other and are perpendicular .

The answer is B.

B . The diagonals are congruent.

A. The diagonals of any rhombus bisect each other, but that does not prove it is a rectangle.

B. The quadrilateral is a parallelogram, and the diagonals are congruent. It must be a rectangle.

C. The diagonals are congruent and perpendicular in any rhombus, but that does not make it a rectangle.

D. This proves a rhombus, but not necessarily a rectangle.

step-by-step explanation:

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-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it