Which of the following are NOT sufficient to prove that a quadrilateral is a parallelogram?
I. Two pairs of opposite angles congruent.
II. A pair of adjacent angles are supplementary.
III. Both pairs of opposite sides are congruent.
IV. A pair of opposite angles congruent and a pair of opposite sides congruent.
V. Both pairs of opposite sides are parallel.
VI. A pair of opposite sides parallel and the other pair of opposite sides congruent.
VII. One pair of opposite sides are both parallel and congruent.
VIII. The diagonals bisect each other.

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

which part are we answering?

since VII is good; that leaves (b) to check as the answer

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.