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.

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .

just keep asking questions until you have a better understanding.

step-by-step explanation: