1. Geometry
Shapes

2. Plane Figures
Polygon: A polygon is a closed plane figure with straight sides that are line segments
No!
No!
Yes

3. Hint: If water can spill out – it is open
Plane Figures
Hint: If water can spill out – it is open
Polygon: A polygon is a closed plane figure with straight sides that are line segments
No!
Yes

4. Question Card 1
Decide if these shapes are polygons
On your paper write yes or no

5. Question #1: Is this a polygon?

6. Question #2: Is this a polygon?

7. Question #3: Is this a polygon?

8. Question #4: Is this a polygon?

9. Answer Card 1 3 2 4 Yes, all straight lines and closed
No, curved line 2 4
No, open

10. Polygons
You can name and sort polygons by the number of sides and angles they have
side
angle

11. Question Card
When you see a shape write down the number of sides and angles

12. Triangle
# 5

13. Quadrilaterals
# 6

14. Pentagons
# 7

15. Hexagons
# 8

16. Octagons
# 9

17. Question
# 10
What do you notice about the number of sides and the number of angles in polygons?

18. EOG Question
# 11
Which statement is true about the three figures in the group?
Three figures are polygons
All of the figures have 2 sides
Two figures are pentagons
One figure is a quadrilateral

19. EOG Answer
# 11
Which statement is true about the three figures in the group?
Three figures are polygons
All of the figures have 2 sides
Two figures are pentagons
One figure is a quadrilateral

20. Polygons with 4 sides and 4 angles
Quadrilaterals
Polygons with 4 sides and 4 angles

21. Trapezoid
One pair of parallel sides

22. On your paper draw the parallel lines on the trapezoid
# 12
One pair of parallel sides
On your paper draw the parallel lines on the trapezoid

23. Parallelogram 1 2
2 pairs of parallel sides
2 pairs of equal sides 1 2

24. Parallelogram
# 13
2 pairs of parallel sides
2 pairs of equal sides
On your paper draw the parallel lines and equal sides for the parallelogram

25. Rhombus
2 pairs of parallel sides
4 equal sides

26. On your paper draw the parallel lines and equal sides on the rhombus
# 14
2 pairs of parallel sides
4 equal sides
On your paper draw the parallel lines and equal sides on the rhombus

27. Rectangle 2 pairs of parallel sides 2 pairs of equal sides
4 right angles

28. Rectangle
# 15
2 pairs of parallel sides
2 pairs of equal sides
4 right angles
On your paper draw the parallel lines, equal sides, and right angles on the rectangle

29. Square
2 pairs of parallel lines
4 equal sides
4 right angles

30. # 16
Square
2 pairs of parallel lines
4 equal sides
4 right angles
On your paper draw the parallel lines, equal sides, and right angles on the square

31. Which figure has four equal sides?
EOG Question
# 17
Which figure has four equal sides? C D A B

32. Which figure has four equal sides?
EOG Answer
# 17
Which figure has four equal sides? C D A B

33. Which figure is a rhombus?
EOG Question
# 18
Which figure is a rhombus? D A B C

34. Which figure is a rhombus?
EOG Question
# 18
Which figure is a rhombus? D A B C

35. EOG Question
# 19
Gina drew the figures U,W, and Y. How are these figures alike?
They are all squares
They each have four right angles
They are all triangles
They each have four equal sides W Y U

36. EOG Question
# 19
Gina drew the figures U,W, and Y. How are these figures alike?
They are all squares
They each have four right angles
They are all triangles
They each have four equal sides W Y U

37. Types of Triangles

38. Write the definition on your sheet
# 20
Equilateral Triangle
3 equal sides
Write the definition on your sheet
2 cm
2 cm
2 cm

39. Write the definition on your sheet
# 21
Isosceles Triangle
2 equal sides
Write the definition on your sheet
3 cm
3 cm
2 cm

40. Write the definition on your sheet
# 22
Scalene Triangle
No sides are equal
Write the definition on your sheet
4 cm
2 cm
3 cm

41. Or you can name the triangles by their angles

42. Write the definition on your sheet
# 23
Right Triangle
1 right angle
Write the definition on your sheet

43. Write the definition on your sheet
# 24
Obtuse Triangle
1 obtuse angle
Write the definition on your sheet

44. Write the definition on your sheet
# 25
Acute Triangle
3 acute angles
Write the definition on your sheet

45. Which triangle has exactly 2 equal sides?
# 26
EOG Review
Which triangle has exactly 2 equal sides? A B C D

46. Which triangle has exactly 2 equal sides?
# 26
EOG Review
Which triangle has exactly 2 equal sides? A B C D

47. Get Ready Make sure you work is finished
Make sure that your name is on your paper