1. Quadrilaterals Kimberly A. Yuretich

2. Objectives To identify any quadrilateral, by name, as specifically as you can, based on its characteristics

3. Quadrilateral a quadrilateral is a polygon with 4 sides.

4. Specific Quadrilaterals There are several specific types of quadrilaterals. They are classified based on their sides or angles.

6. A quadrilateral simply has 4 sides – no other special requirements.

7. Examples of Quadrilaterals

8. A parallelogram has two pairs of parallel sides.

9. Parallelogram Two pairs of parallel sides opposite sides are actually congruent.

10. A rhombus is a parallelogram that has four congruent sides.

11. Rhombus Still has two pairs of parallel sides; with opposite sides congruent. 4 in.

12. A rectangle has four right angles.

13. Rectangle Still has two pairs of parallel sides; with opposite sides congruent. Has four right angles

14. A square is a specific case of both a rhombus AND a rectangle, having four right angles and 4 congruent sides.

15. Square Still has two pairs of parallel sides. Has four congruent sides Has four right angles

16. A trapezoid has only one pair of parallel sides.

17. An isosceles trapezoid is a trapeziod with the non-parallel sides congruent.

18. Trapezoid has one pair of parallel sides. Isosceles trapezoid trapezoids (Each of these examples shown has top and bottom sides parallel.)

19. An kite is a quadrilateral with NO parallel sides but 2 pairs of adjacent congruent sides.

20. Example of a Kite 2 in. 4 in. 2 in.