Parallelogram Review

Which is true about parallelograms?

• Opposite sides are congruent

• Diagonals are congruent

• Consecutive angles are congruent

• The interior angles add to 180 degrees

The figure is a parallelogram.  
Solve for x.  

• 1

• 11

• 7

• 6

The figure is a parallelogram.  
Solve for x.  

• 7

• 2

• 0

• 4

What is the value of x?

• 132

• 66

• 114

• 48

Prove that if a quadrilateral is a parallelogram, then the opposite sides are congruent.

• parallel

• Alternate Interior Angles Theorem.

• Reflexive Property.

• ASA≅

• Corresponding Parts of Congruent Triangles are Con

Prove that if a quadrilateral is a parallelogram, then the opposite sides are congruent.

By definition, the opposite sides of a parallelogram are ​ (a)   . 

∠ABC ≅∠DCB and ∠CBD≅∠BCA by the ​ (b)   BC≅CB by the ​ (c)   △ABC ≅△DCB by the ​ (d)   . AB≅CD and BD≅AC by the​ (e)   .

• parallel

• Alternate Interior Angles Theorem.

• Reflexive Property.

• ASA≅

• Corresponding Parts of Congruent Triangles are Con

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

• 10

• 11

• 7

• 5

LMNO is a parallelogram
solve for X

• 19

• 20

• 33

• 53

______ parallelograms are quadrilaterals.

• All

• Some

• No

In a parallelogram, consecutive angles are __________.

• congruent

• supplementary

• corresponding

• parallel