Aleika B.

Parallelogram

Rev. Def: Both pairs of opp. sides are parallel

Thm: Both pairs of opposite sides are congruent

Thm: one pair of opposite sides are congruent and parallel

Thm: Diagonals bisect each other

Thm: Both pairs of opposite angles are congruent

Rectangle

Rev. Def: One right angle

Thm: Diagonals are congruent

Thm: All four angles are right angles

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Rhombus

Rev. Def: A pair of consecutive sides are congruent

Thm: Either diagonals bisect two angles

Thm: Diagonals are perpendicular bisectors of each other

Square

Rev: Def: Both rectangle and rhombus properties

Kite

Rev. Def: Two disjoint pairs of consecutive sides are congruent

Thm: One diagonal is a perpendicular bisector of the other diagonal

Trapezoid

Rev. Def: Exactly one pair of parallel lines

Isosceles trapezoid

Rev. Def: Nonparallel sides are congruent

Thm: Lower or upper base angles are congruent

Thm: Diagonals are congruent

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