1. Geometry Review
By Mr. Hemmert

2. ALCOS
G1: Identify triangles, quadrilaterals, pentagons, hexagons, or octagons based on the number of sides, angles, and vertices.
G1.1 Demonstrating slides (translations), flips (reflections), and turns (rotations) using triangles, quadrilaterals, pentagons, hexagons, or octagons.
G1.2 Drawing lines of symmetry in triangles, quadrilaterals, pentagons, hexagons, or octagons.

3. Lesson 8-1 Relating Solids and Plan Figures
A plane figure (flat shape) has just two dimensions, length and width.

4. Lesson 8-1 Relating Solids and Plan Figures
A solid figure has three dimensions, length, width, and height.

5. Lesson 8-1 Relating Solids and Plan Figures
A prism has the same cross section all along its length!
Example:
The cross section of this object is a triangle ...
it has the same cross section all along its length ...
and so it's a triangular prism.

6. Can you identify these solids?
Triangular prism

7. Can you identify these solids?
Cone

8. Can you identify these solids?
cylinder

9. Can you identify these solids?
Cube

10. Can you identify these solids?
Sphere

11. Can you identify these solids?
Square pyramid

12. Can you identify these solids?
Triangular Prism

13. Lesson 8-2 Polygons
A polygon is a closed plane figure made up of line segments. Each line segment is a side. The point where the sides meet is called a vertex.

14. Polygons – Can you name the polygon?
Triangle

15. Polygons – Can you name the polygon?
Quadrilateral – 4 sides

16. Polygons – Can you name the polygon?
Hexagon – Six Sides

17. Polygons – Can you name the polygon?
What polygon has 8 sides and 8 vertices?
Octagon

18. Polygons – Can you name the polygon?
What do we call a polygon that has 5 sides and 5 vertices?
Pentagon

19. Polygons – Can you name the polygon?
What do we call a polygon that has 10 sides and 10 vertices?
Decagon

20. Lines, Line Segments, Rays, and Angles
A point is an exact location in space.

21. Lines, Line Segments, Rays, and Angles
A line is a straight path of points that goes on and on in two directions.

22. Lines, Line Segments, Rays, and Angles
A line segment is part of a line. It has two endpoints.

23. Lines, Line Segments, Rays, and Angles
A ray is part of a line. It has one endpoint and continues on and on in only one direction.

24. Can you identify the following lines?
Name Three Rays:
___________, __________, ________

25. Can you identify the following angles?
Can you identify an obtuse angle? __________
Can you identify a straight angle? __________
Can you identify an acute angle? __________

26. Congruent Figures and Motions Lesson 8-6
What does congruent mean?
Click here to learn more about slides, turns, and flips