16 terms

properties of parallelograms and ways to prove a quadrilateral is a parallelogram

property: both pairs of opposite sides are parallel

*opposite sides: parallel

property: both pairs of opposite sides are congruent

*opposite sides: congruent

property: both pairs of opposite angles are congruent

*opposite angles: congruent

property: diagonals bisect eachother

*diagonals bisect e/o

property: all consecutive angles are supplementary

*quad angles add up to 360

ways to prove a quad is a parallelogram: show both pairs of opposite sides are parallel

*opposite sides: parallel

ways to prove a quad is a parallelogram: show both pairs of opposite sides are congruent

*opposite sides: congruent

ways to prove a quad is a parallelogram: show both pairs of opposite angles are congruent

*opposite angles: congruent

ways to prove a quad is a parallelogram: show that the diagonals bisect each other

*diagonals bisect e/o

ways to prove a quad is a parallelogram: show that all consecutive angles are supplementary

*quad angles add up to 360

ways to prove a quad is a parallelogram: show that one pair of opposite sides is both parallel and congruent

*one pair of opposite sides: parallel & congruent

important to remember

quad angles add up to 360

properties of parallelograms

5 bullet points

ways to prove a quadrilateral is a parallelogram

6 bullet points

properties of parallelograms {list}

• both pairs of opposite sides parallel

• both pairs of opposite sides congruent

• both pairs of opposite angles congruent

• diagonals bisect each other

• all consecutive angles are supplementary

• both pairs of opposite sides congruent

• both pairs of opposite angles congruent

• diagonals bisect each other

• all consecutive angles are supplementary

ways to prove a quadrilateral is a parallelogram {list}

• show both pairs of opposite sides are parallel

• show both pairs of opposite sides are congruent

• show both pairs of opposite angles are congruent

• show that the diagonals bisect each other

• show that all consecutive angles are supplementary

• show that one pair of opposite sides is both parallel and congruent

• show both pairs of opposite sides are congruent

• show both pairs of opposite angles are congruent

• show that the diagonals bisect each other

• show that all consecutive angles are supplementary

• show that one pair of opposite sides is both parallel and congruent