6-2 Properties of Parallelograms

congruent

supplementary

corresponding

parallel

complementary

congruent

supplementary

perpendicular

Diagonals bisect each other

Diagonals are congruent

Both pairs of opposite sides are parallel

Both pairs of opposite angles are congruent

congruent

perpendicular

skew

supplementary

perpendicular

bisected

congruent

parallel

10

3

5

12

 $80\degree$  

 $40\degree$  

 $30\degree$  

 $70\degree$  

12

20

24

32

0

10

12

27

 $\overline{BR}$  and  $\overline{KA}$  

  $\overline{AB}$  and  $\overline{RK}$  

 $\overline{BR}$  and  $\overline{RK}$  

  $\overline{AB}$  and  $\overline{KA}$  

Symmetric Property

CPCTC

Reflexive Property

SSS

ASA

SAS

AAS

SSS

all sides are congruent property

all sides are parallel property

Definition of a quadrilateral

Definition of parallelogram

Alternate Interior Angles Theorem

Alternate Exterior Angles Theorem

Same- Side Angles Theorem

Congruent Angles Theorem

opposite sides of a parallelogram are congruent theorem

all sides are parallel

sides are congruent

sides are supplementary

Side Angle Side Triangle Congruence Theorem

CPCTC

Angle Side Angle Triangle Congruence Theorem

Side Side Side Triangle Congruence Theorem

All sides are congruent postulate

CPCTC

Reflexive Property

Vertical Angles Theorem

Definition of a parallelogram

Definition of a quadrilateral

opposite sides are congruent property

opposite sides are supplementary

Same-side interior angles theorem

alternate interior angles theorem

consecutive angles theorem

supplementary angles

vertical angles theorem

stuck together and sharing a side theorem

shared side property

reflexive property

SSS Triangle Congruence Postulate

AAS Triangle Congruence Theorem

ASA Triangle Congruence Theorem

SAS Triangle Congruence Theorem

Coffee Please Control the Creamer

PSATs

SATs

CPCTC