1. Classifying Quadrilaterals

2. What is a quadrilateral?
A quadrilateral is a closed 2 dimensional figure with that are line segments.
four sides

3. What is a parallelogram?
Quadrilateral – 4 sides
Opposite sides congruent
Opposite sides parallel

4. What is a rectangle? Quadrilateral- 4 sides Four right angles.
Parallelogram- opposite sides parallel
Four right angles.

5. What is a rhombus? Quadrilateral- 4 sides
Parallelogram- opposite sides parallel
Four congruent sides.

6. What is a square? Quadrilateral – 4 sides
Parallelogram- opposite sides parallel
Rectangle- 4 right angles
Rhombus- 4 sides congruent

7. What is a trapezoid? Quadrilateral – 4 sides
Exactly one pair of parallel sides

8. Quadrilateral
Parallelogram
Rhombus
Rectangle
Square
Trapezoid

9. What are all of the names for this polygon?
Quadrilateral
Parallelogram
Rectangle
Which name best describes the shape?

10. What are all of the names for this polygon?
Quadrilateral
Parallelogram
Which name best describes the shape?

11. What are all of the names for this polygon?
Quadrilateral
Parallelogram
Rhombus
Which name best describes the shape?

12. What are all of the names for this polygon?
Quadrilateral
Trapezoid
Which name best describes the shape?

13. What are all of the names for this polygon?
Quadrilateral
Parallelogram
Square
Rhombus
Rectangle
Which name best describes the shape?

14. Property of quadrilaterals
The sum of all the angles equals 360º degrees.
90º
90º
90º
90º

15. Property of Quadrilaterals
The sum of all the angles equals 360º degrees.
70º
70º
70º
70º
110º
110º +
110º
110º
360º

16. Property of Quadrilaterals
The sum of all the angles equals 360º degrees.
65º
65º
115º
65º
115º
115º +
65º
115º
360º

17. What is the missing angle?
58º
109º
81º ?
109º
58º
81º + ?
360º