Which statement can be used to prove that a given parallelogram is a rectangle?

a. the opposite sides of the parallelogram are congruent.

b. the opposite angles of the parallelogram are congruent.

c. the diagonals of the parallelogram bisect the angles.

d. he diagonals of the parallelogram are congruent.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.