Which of the following is not an attribute of parallelograms? A)Opposite sides are parallel. B)Consecutive angles are supplementary. C)Diagonals bisect each other. D)Diagonals are congruent. My answer is D..

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

Need on this one asap im almost done with this subject

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning