Math III - Proofs and Parallelograms Practice 12/16

Front

What property is shown when one pair of opposite sides is congruent and parallel?

Back

This property indicates that the figure is a parallelogram.

Front

What does it mean if opposite angles in a quadrilateral are congruent?

Back

It means that the quadrilateral could be a parallelogram, as one of its properties is that opposite angles are equal.

Front

In a proof, what must we do before we can use CPCTC?

Back

We must prove two triangles are congruent.

Front

What is the AAS postulate in triangle congruence?

Back

AAS stands for Angle-Angle-Side, which states that if two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle, then the triangles are congruent.

Front

Which property is NOT true for a parallelogram?

Back

Diagonals are congruent.

Front

What does CPCTC stand for in geometry?

Back

CPCTC stands for Corresponding Parts of Congruent Triangles are Congruent.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a quadrilateral with both pairs of opposite sides parallel.

Front

What is the significance of diagonals bisecting each other in a parallelogram?

Back

It is one of the properties that confirms a quadrilateral is a parallelogram.

Front

What is the SAS postulate in triangle congruence?

Back

SAS stands for Side-Angle-Side, which states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent.

Front

What does it mean if two triangles are congruent?

Back

It means that all corresponding sides and angles are equal.