End of unit 2 congruence

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 angles in a parallelogram?

Back

In a parallelogram, opposite angles are equal, and adjacent angles are supplementary (sum to 180 degrees).

Front

If angle H in parallelogram HIJK is 45 degrees, what is the measure of angle J?

Back

Angle J measures 45 degrees.

Front

If angle H in parallelogram HIJK is 45 degrees, what is the measure of angle K?

Back

Angle K measures 135 degrees.

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

How do you find the measure of an unknown angle in a parallelogram?

Back

To find an unknown angle, use the properties of parallelograms: opposite angles are equal, and adjacent angles are supplementary.

Front

What is the relationship between adjacent angles in a parallelogram?

Back

Adjacent angles in a parallelogram are supplementary, meaning they add up to 180 degrees.

Front

What is the measure of angle K if angle J is 135 degrees in parallelogram HIJK?

Back

Angle K measures 45 degrees.

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.