2. GEOMETRY A Review of Shapes in Geometry Grades 9-12 Jon Dressler Forward

3. Navigation Click on a shape or the shape’s name to find out some facts about it. Click on the arrow after looking at each shape to take a review quiz. Triangle Square Pentagon Hexagon Heptagon Octagon Nonagon Decagon Quiz!

4. Triangle A triangle is a three sided shape Each angle of a regular triangle is 60 degrees The total number of degrees in a triangle is 180 Back

5. Square A square is a four sided figure All sides of a square are the same length Each angle of a square is 90 degrees Back

6. Pentagon A pentagon is a five sided figure Each angle of a regular pentagon is 108 degrees The total number of degrees in a pentagon is 540 Back

7. Hexagon A hexagon is a six sided figure Each angle of a regular hexagon is 120 degrees The total number of degrees in a hexagon is 720 Back

8. Heptagon A heptagon is a seven sided figure Each angle of a regular heptagon is 128 degrees The total number of degrees in a heptagon is 900 Back

9. Octagon An octagon is an eight sided figure Each angle of a regular octagon is 135 degrees The total number of degrees in an octagon is 1080. Back

10. Nonagon A nonagon is a nine sided figure Each angle of a regular nonagon is 140 degrees The total number of degrees in a nonagon is 1260 Back

11. Decagon A decagon is a ten sided figure Each angle of a regular octagon is 144 degrees The total number of degrees in a decagon is 1440 Back

12. Which shape has seven sides? A.HexagonHexagon B.HeptagonHeptagon C.OctagonOctagon

13. Hexagon This is not the correct answer. A hexagon only has six sides. Please try again. Back

14. Heptagon This is the correct answer! A heptagon has seven sides. Conclusion

15. Octagon This is not the correct answer. An octagon has eight sides. Please try again. Back

16. Congratulations You have correctly answered the review question and completed the lesson. Click the arrow to reset the PowerPoint for the next person. Back