Properties of Quadrilaterals

Front

What is a quadrilateral?

Back

a 4 sided polygon

Front

what is a parallelogram?

Back

a quadrilateral with both pair of opposite sides parallel

Front

what are the 6 properties of parallelograms

Back

1. 1. Both pair of opposite sides are parallel

2. 2. both pair of opposite sides are congruent

3. 3. diagonals bisect each other

4. 4. both pair of opposite angles are congruent

5. 5. consecutive angles are supplementary

6. 6. one pair of opposite sides is both parallel and congruent (used to prove)

Front

what is a rectangle?

Back

a parallelogram with 4 right angles

Front

what are the 3 properties of rectangles?

Back

1. 1. All the properties of parallelograms

2. 2. has 4 right angles

3. 3. diagonals are congruent

Front

what is a rhombus?

Back

a parallelogram with 4 congruent sides

Front

what are the 4 properties of a rhombus?

Back

1. 1. All properties of parallelograms

2. 2. 4 congruent sides

3. 3. Diagonals are perpendicular

4. 4. diagonals are angle bisectors

Front

what is a square?

Back

A parallelogram with 4 right angles and 4 congruent sides

Front

what are the 6 properties of a square?

Back

1. 1. All the properties of parallelograms

2. 2 and 3. the properties of rectangles = 4 right angles and the diagonals are congruent.

3. 4, 5, and 6 = the properties of a rhombus = 4 congruent sides, diagonals are perpendicular, and the diagonals are angle bisectors.

Front

what is a trapezoid?

Back

a quadrilateral with exactly one pair of opposite sides parallel