Properties of Parallelograms

Front

What is a property of the opposite sides of a parallelogram?

Back

The opposite sides are congruent.

Front

What is one of the properties of parallelograms?

Back

The opposite sides are equal and parallel.

Front

What do we call angles that add up to 180 degrees in a parallelogram?

Back

Supplementary angles.

Front

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

Back

True.

Front

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

Back

360 degrees.

Front

What is the relationship between consecutive angles in a parallelogram?

Back

They are supplementary.

Front

What is the definition of a parallelogram?

Back

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

Front

What can be said about the diagonals of a parallelogram?

Back

They bisect each other.

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 is the relationship between opposite angles in a parallelogram?

Back

They are congruent.