Properties of Parallelograms

Front

Is the quadrilateral a parallelogram?

Back

Yes; one pair of opposite sides are parallel and congruent.

Front

The opposite angles of a parallelogram are ...

Back

congruent.

Front

Find x if the angles are 85, 95, 105, and 75 degrees.

Back

95.

Front

The opposite sides of a parallelogram are congruent. True or False?

Back

True.

Front

Which theorem shows that the quadrilateral is a parallelogram?

Back

1 set of Opposite Sides is Parallel and Congruent.

Front

Definition of a parallelogram.

Back

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

Front

What is the sum of the interior angles of a parallelogram?

Back

360 degrees.

Front

If one angle of a parallelogram is 70 degrees, what are the measures of the other angles?

Back

70 degrees, 110 degrees, 110 degrees.

Front

What property do the diagonals of a parallelogram have?

Back

They bisect each other.

Front

If two opposite sides of a quadrilateral are both parallel and equal, what can be concluded?

Back

It is a parallelogram.