Parallelogram Review

Is this quadrilateral a parallelogram? If so, give a reason.

• No

• Yes. Opposite sides are parallel

• Yes. Opposite sides are congruent

• Yes. Opposite angles are congruent

The diagonals of a parallelogram always ... 

• are congruent

• are perpendicular

• bisect each other

• are parallel

In a parallelogram, opposite angles are ________.

• congruent

• supplementary

• consecutive

• parallel

• x = 23, y = 10
• x = 10, y = 23

If ABCD is a parallelogram, what is the length of BD? 

• 10

• 11

• 7

• 5

• x = 40 , y = 40 
• x = 30, y = 30
• x = 40, y = 30
• x = 30, y = 40

• x = 70, y = 80
• x = 70, y = 30
• x = 80, y = 70
• x = 80, y = 30

• x = 30, y = 40
• x = 40, y = 30
• x = 40, y = 15
• x = 30, y = 30

• x = 9, y = 4
• x = 6, y = 4
• x = 6, y = 2
• x = 4, y = 2

Is the quadrilateral a parallelogram? If yes, state how you know.

• Opposite sides parallel

• Opposite angles equal

• Opposite sides equal and parallel

• Not enough info