Parallelograms Practice

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Front

What are the properties of opposite angles in a parallelogram?

Back

The opposite angles of a parallelogram are congruent (equal in measure).

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

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

Back

The sum of the interior angles of a parallelogram is 360 degrees.

Front

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

Back

The opposite angle is also 70 degrees, and the adjacent angles are 110 degrees each.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

Are the diagonals of a parallelogram always congruent?

Back

No, the diagonals of a parallelogram are not always congruent; they are only congruent in rectangles and squares.

Front

What can be said about the sides of a parallelogram?

Back

Both pairs of opposite sides of a parallelogram are parallel and equal in length.

Front

If two angles of a parallelogram are 60 degrees and 120 degrees, what can be inferred?

Back

The angles are supplementary, meaning they add up to 180 degrees.

Front

How can you determine if a quadrilateral is a parallelogram?

Back

A quadrilateral is a parallelogram if one pair of opposite sides is both parallel and equal in length.