unit 4 math

Quadrilateral Def

4 sided polygon

Trapezoid def

quadrilateral with one pair of opposite, parallel sides

Trapezoid properties

2 pairs of adjacent supplementary angles

Isosceles Trapezoid def

a trapezoid with opposite congruent sides

isosceles trapezoid properties

1) base angles are congruent

2) 2 pairs of congruent angles

3) diagonals bisect eachother

Right trapezoid def

trapezoid with a right angle

Parallelogram def

quadrilateral with two pairs of opposite parallel sides

Parallelogram properties

1) 2 pairs of opposite congruent sides

2) 2 pairs of opposite congruent angles

3) diagonals bisect each other

Rectangle def

a parallelogram with a right angle

rectangle properties

diagonals bisect each other and are congruent

Rhombus def

parallelogram with four congruent sides / a kite with four congruent sides

Rhombus properties

1) diagonals are perpendicular

2) diagonals bisect their respective vertacie angles

3) reflective symmetry along diagonals

Square def

a rhombus with a right angle / a rectangle with 4 congruent sides

Square properties

1) diagonals bisect each other and are congruent

2) diagonals are perpendicular

3) diagonals bisect their respective vertacies

4) reflective symmetry along diagonals

Kite def

quadrilateral with two pairs of adjacent sides that are congruent to each other

Kite properties

1) one pair of opposite congruent angles located between pairs of sides

2) longer diagonal bisects the shorter diagonal

3) diagonals are perpendicular

right kite def

a kite with a right angle