Parallelograms

Which among the statements is not a property of parallelograms?

• Consecutive angle are supplementary.

• Opposite sides are parallel.

• Opposite angles are not equal.

• Diagonals bisect each other.

All parallelograms are quadrilaterals.

• Always

• Sometimes 

• Never

ABCD is a parallelogram. Find the value of x. (Remember: Consecutive angles are supplementary.)

• 11

• 12

• 13

• 14

The figure PQRS is a parallelogram. Find the value of y. (Remember: Opposite sides are equal)

• $\frac{28}{8}$

• $\frac{22}{8}$

• $\frac{8}{28}$

• $\frac{8}{22}$

The figure PQRS is a parallelogram. What is the value of x? (Remember: Consecutive angles are supplementary)

• 72

• 74

• 76

• 78

A square is a parallelogram.

• Always

• Sometimes 

• Never

A parallelogram with a right angle is a square.

• Always

• Sometimes 

• Never

A parallelogram with four congruent sides is a square.

• Always

• Sometimes 

• Never

Given that WXYZ is a parallelogram, find the value of b.

• 6

• 8

• 10

• 12

Find the value of "a" given that WXYZ is a parallelogram.

• 6

• 8

• 10

• 12