Parallelogram proofs flashcard 2

Front

What is a parallelogram?

Back

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

Front

What is the property of opposite angles in a parallelogram?

Back

Opposite angles in a parallelogram are congruent.

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

What does CPCTC stand for?

Back

CPCTC stands for 'Corresponding Parts of Congruent Triangles are Congruent'.

Front

What is the reflexive property?

Back

Front

If one pair of opposite sides of a quadrilateral is both congruent and parallel, what can be concluded?

Back

The quadrilateral is a parallelogram.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

What is the vertical angles theorem?

Back

The vertical angles theorem states that opposite angles formed by two intersecting lines are congruent.

Front

What is the shared side property?

Back

The shared side property states that if two triangles share a side, that side is congruent to itself.

Front

What is the significance of the definition of a parallelogram in proofs?

Back

The definition of a parallelogram provides the basis for proving properties related to its sides and angles.