Quadrilateral Theorem

Is the quadrilateral a parallelogram? If yes, pick the statement that explains why.

• Opposite sides parallel

• Opposite sides equal

• Opposite sides parallel and equal

• Not enough info

Which is NOT a property of a parallelogram?

• Diagonals bisect each other

• Diagonals are congruent

• Both pairs of opposite sides are parallel

• Both pairs of opposite angles are congruent

Which statement about parallelograms is always true?

• The diagonals are congruent.

• The diagonals bisect each other.

• The diagonals are perpendicular.

• The diagonals bisect their respective angles.

Is there enough information to determine that this quadrilateral is a parallelogram?

• yes

• no

Is there enough information to determine that this quadrilateral is a parallelogram?

• no, because only one pair of opposite sides are

Find the value of x that makes the quadrilateral a parallelogram.

• 5

• 35

• 75

• 55

Which method will NOT prove the quadrilateral is a parallelogram.

• Show that a pair of sides are congruent and parallel.

• Show that both pairs of opposite sides are congruent

• Show that both pairs of opposite sides are parallel

• Show that a pair of sides are parallel

Find the value of x that makes the quadrilateral a parallelogram.

• 41

• 12

• 14

• This quadrilateral cannot be a parallelogram.

Find the value of x that makes the quadrilateral a parallelogram.

• 4

• 6

• 8

• 10

Find the value of x that makes the quadrilateral a parallelogram.

• 29

• 42

• 78

• 11