Flashcard 1 Parallelogram

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel.

Front

What is the definition of opposite sides congruent?

Back

Opposite sides are congruent if they have the same length.

Front

What does it mean for opposite angles to be congruent?

Back

Opposite angles are congruent if they have the same measure.

Front

What is the condition for a quadrilateral to be a rhombus?

Back

A rhombus is a parallelogram with all sides congruent.

Front

What does it mean for consecutive angles to be supplementary?

Back

Consecutive angles are supplementary if their measures add up to 180 degrees.

Front

What is the significance of diagonals being mutual bisectors in a parallelogram?

Back

In a parallelogram, the diagonals bisect each other, meaning they cut each other in half.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie on opposite sides of a transversal and inside two parallel lines.

Front

How can you determine if a quadrilateral is a parallelogram using one set of sides?

Back

If one set of opposite sides is both parallel and congruent, the quadrilateral is a parallelogram.

Front

What is the relationship between the angles in a parallelogram?

Back

In a parallelogram, opposite angles are equal, and consecutive angles are supplementary.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.