Properties of Parallelograms Flashcard

Front

What are the properties of opposite sides in a parallelogram?

Back

The opposite sides of a parallelogram are congruent.

Front

What can be concluded if a quadrilateral has opposite sides that are parallel?

Back

It is a parallelogram because opposite sides are parallel.

Front

What can be concluded if a quadrilateral has opposite sides that are congruent?

Back

It is a parallelogram because opposite sides are congruent.

Front

What can be concluded if a quadrilateral has opposite angles that are congruent?

Back

It is a parallelogram because opposite angles are congruent.

Front

What can be concluded if a quadrilateral has one set of sides that is both parallel and congruent?

Back

It is a parallelogram because one set of sides is parallel and congruent.

Front

What is the relationship between the diagonals of a parallelogram?

Back

In a parallelogram, the diagonals are bisected.

Front

If two angles of a quadrilateral are supplementary, what can be inferred about the quadrilateral?

Back

If consecutive interior angles are supplementary, it can be concluded that the quadrilateral is a parallelogram.

Front

What is the measure of angle R if it is given that m∠R = 140°?

Back

The measure of angle R is 140°.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

How can you determine if a quadrilateral is a parallelogram using its angles?

Back

If both pairs of opposite angles are congruent, the quadrilateral is a parallelogram.