Applying Properties of Parallelograms, Rectangles, Rhombi, Squares

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

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

• 1=30 ,  2=82,  3=50
• 1=32,  2=98 , 3=50
• 1=30 ,  2=98 , 3=50
• 1=30 , 2=98 , 3=40

Is this quadrilateral a parallelogram?

• Yes. Diagonals bisect each other
• no
• Yes. Opposite angles are congruent
• Yes. Opposite sides are congruent

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