Properties of Parallelogram

___________ angles of parallelogram are supplementary.

• consecutive

• adjacent

• opposite

If the consecutive angles of a quadrilateral are _____________, then it is a parallelogram.

• complementary

• perpendicular

• supplementary

Find x.

• 75
• 85
• 105
• 95

Complete the theorem: "A quadrilateral is a parallelogram if any two opposite angles are _______________________."

• congruent

• supplementary

• complementary

• equal

Parallelogram has no opposite angles are congruent.

• True

• False

What condition best describe that guarantee the given figure a parallelogram?

• A quadrilateral is a parallelogram if its opposite sides are congruent.

• A quadrilateral is a parallelogram if its diagonals bisect each other.

• A quadrilateral is a parallelogram if its opposite angles are congruent.

• A quadrilateral is a parallelogram if a pair of opposite sides are parallel and congruent.

In the picture of this parallelogram, angle ABD must be congruent to which angle?

In parallelogram GIVE, the diagonal GV is 17cm. What is the length of segment RV?

• 17 cm

• 7.5 cm

• 9.5 cm

• 8.5 cm

In the parallelogram CARE, ∠C is supplementary to ∠R.

• True

• False