This document provides information about classifying quadrilaterals. It discusses the key properties of quadrilaterals including having 4 sides and 4 angles. It demonstrates different types of quadrilaterals using arrows and dashes to indicate parallel or equal sides. Examples shown include parallelograms, rectangles, rhombus. It emphasizes that the interior angles of any quadrilateral sum to 360 degrees and provides an example of calculating the measure of an unknown angle using this property.

1. 9.5 Classifying Quadrilaterals

2. For your
Notes:
A quadrilateral has 4
sides and 4
angles.

3. Quadrilaterals
Copy
these
quadrilateral in
your notes
(click again to remove diamond)

4. Quadrilaterals

5. Quadrilaterals

6. Quadrilaterals

7. Quadrilaterals
These arrows
indicate the lines
are parallel.

8. Quadrilaterals
These arrows
indicate the lines
are parallel.

9. Quadrilaterals
These arrows
indicate the lines
are parallel.

10. Quadrilaterals
Notice that these
These arrows
have 2 arrows to
indicate the lines
differentiate from
are parallel.
the other parallel
lines.

11. Quadrilaterals
Notice that these
These arrows
have 2 arrows to
indicate the lines
differentiate from
are parallel.
the other parallel
lines.

12. Quadrilaterals
Notice that these
These arrows
have 2 arrows to
indicate the lines
differentiate from
are parallel.
the other parallel
lines.

13. Quadrilaterals
Notice that these
These arrows
have 2 arrows to
indicate the lines
differentiate from
are parallel.
the other parallel
lines.
These dashes
represent the
sides are equal in
length

14. click to reveal answers

15. click to reveal answer

18. click to check answers

19. click to check answers

20. click to check answers

23. Practice
drawing on your
own.

24. click to check answers

25. click to check answers

26. click to check answers

27. The sides with only one
dash are equal in
length.
click to check answers

28. The sides with only one
dash are equal in
length.
click to check answers

29. The sides with only one
dash are equal in
length.
click to check answers

30. The sides with only one
The sides with two
dash are equal in
dashes are equal
in length.
length.
click to check answers

31. The sides with only one
The sides with two
dash are equal in
dashes are equal
in length.
length.

32. The sides with only one
The sides with two
dash are equal in
dashes are equal
in length.
length.
1. True 2. True 3. Parallelogram
4. Rhombus, Parallelogram
5. Rectangle, Parallelogram
6. There should be no right angles, and the sides should not all be equal.

33. Copy in
your notes:
Angles of a quadrilateral
measure 360
degrees.

34. Copy in
your notes:
Angles of a quadrilateral
measure 360
degrees.

35. Eliminate
A because the
angle is Copy in
obviously
obtuse. your notes:
Angles of a quadrilateral
measure 360
degrees.

36. Eliminate
A because the
angle is Copy in
obviously
obtuse. your notes:
Angles of a quadrilateral
measure 360
degrees.

37. Eliminate
Add all the sides,
A because the
then subtract
angle is
from 360.
Copy in
obviously
obtuse. your notes:
Angles of a quadrilateral
measure 360
degrees.

38. Eliminate
Add all the sides,
A because the
The correct
then subtract
angle is
answer is B.
from 360.
Copy in
obviously
obtuse. your notes:
Angles of a quadrilateral
measure 360
degrees.

39. Eliminate
Add all the sides,
A because the
The correct
then subtract
angle is
answer is B.
from 360.
Copy in
obviously
obtuse. your notes:
Angles of a quadrilateral
measure 360
degrees.

40. Practice

41. Practice
click to check answers

42. Practice
click168check answers
to degrees

43. Practice

44. Practice