16 terms

parallelograms

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