1. Geometry Mr. Zampetti Unit 3, Day 4
Quadrilaterals
Geometry
Mr. Zampetti
Unit 3, Day 4

3. Vocabulary Quadrilateral: A polygon with 4 sides.
Consecutive angles: Two angles whose vertices are endpoints of a side.
Opposite angles: Two angles that are not consecutive angles. A B D C

4. Parallelogram Characteristics of a parallelogram:
Opposite sides are parallel.
Opposite sides are congruent.
Opposite angles are congruent.
Consecutive angles are supplements.
Diagonals bisect each other.

5. Rectangle A parallelogram with four right angles.
The diagonals of a rectangle are congruent.

6. Rhombus A parallelogram in which all sides are of equal length.
The diagonals of a rhombus are perpendicular to each other.
The diagonals of a rhombus bisect its angles.

7. Square
A rectangle in which all sides are of equal length.

8. Trapezoid What is a trapezoid?
A quadrilateral in which only one pair of opposite sides are parallel.

9. Isosceles Trapezoid
A trapezoid in which the nonparallel sides are equal.

10. Kite
A kite is a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent.

11. Quadrilateral Relationships
Quadrilaterals
Kite
Parallelograms
Trapezoids
Rectangles
Rhombus
Isosceles Trapezoids
Squares

13. Homework
Work Packet:
Quadrilaterals