1. Homework Review

2. GSE Geometry Day 12 ( )
UNIT QUESTION: What are the properties and characteristics of polygons?
Today’s Question:
What four things do we know about all parallelograms?

3. The prefix QUADR means 4.
Quadrant
Quadruple
Quadricepts
Quadrilateral

4. To name a quadrilateral...
list the vertices in order, like the
sweeping hands of a clock.
QUAD
UADQ U Q
ADQU A D
DQUA

5. Consecutive C B
Consecutive
Sides A D
One after the other

6. Consecutive C B
Consecutive
Vertices A D
One after the other

7. Segment with two nonconsecutive vertices
Diagonal C B A D
Segment with two nonconsecutive vertices

8. Find x.

9. Find x.

10. Washington, D.C. United States Capitol Washington Monument
Name the attraction that
is located on a diagonal.
Name the attractions that
are located on the vertices.
Washington Monument
Jefferson Memorial
White House
Lincoln Memorial

11. You MUST memorize (learn) the 5 properties of parallelograms.

12. Opposite sides are congruent
5-8 Parallelograms
Opposite sides are congruent

13. Opposite angles are congruent

14. Consecutive angles are supplementary.
ADD UP TO 180
Consecutive angles are supplementary.

15. Diagonals bisect each other.
This cuts the diagonals into two equal parts.

16. 23 K L 15 N M

17. 23 K L 15 N M

18. 23 K L 15 N M

19. K L P N M

20. Practice
Worksheet

21. Other Quadrilaterals

22. Types of Parallelograms
SQUARES
RECTANGLES
RHOMBI

23. Have all the properties of parallelograms and TWO special properties
Rectangle
Have all the properties of parallelograms and TWO special properties

24. RECTANGLE
FOUR RIGHT ANGLES

25. A quadrilateral is a RECTANGLE if and only if it has four right angles

26. Diagonals are Congruent
RECTANGLE
Diagonals are Congruent

27. PQRS is a rectangle P Q S R

28. PQRS is a rectangle P Q S R

29. Homework
Workbook Page 318 and 319