Unit 6: Quiz Review

The diagonals of a parallelogram always ... 

• are congruent
• are perpendicular
• bisect each other
• are parallel

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

• x = 23, y = 10
• x = 10, y = 23

In a parallelogram, opposite angles are ________.

• congruent
• supplementary
• consecutive
• parallel

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

The figure is a parallelogram.  
Solve for x.  

• 12
• 4
• 6
• 2

The figure is a parallelogram.  
Solve for x.  
Give a reason.

• 2
• 10
• 11
• 12

The figure is a parallelogram.  
Solve for x.  

• 1
• 11
• 7
• 6