## Cabri™ Jr.: Interactive Geometry Activities and Investigations

### Explore geometry through the 29 activities in this book. The focus here is on concepts rather than keystrokes and allows students to explore five areas of geometry in depth. Author(s) - Charles Vonder Embse and Eugene Olmstead

**Table of Contents**

1. Betweenness and the Sum of Parts

2. Angles Formed by Two Intersecting Lines

3. Angles and Transversals

4. Perpendicular Bisector Theorem

5. Shortest Distance Between Points and Lines

6. Translations in the Plane

7. Reflections in the Plane

8. Rotations in the Plane

9. Connecting Translations, Reflection, and Rotations

10. Dilations in the Plane

11. Proof of the Pythagorean Theorem using Transformations

12. Constructing Triangles

13. Angles of a Triangle

14. Triangle Inequality Theorem

15. Similar Triangles and Proportions

16. Midsegments of a Triangle

17. Ratios in Right Triangles

18. Altitude, Median, and Angle Bisector of a Triangle

19. Centers of a Triangle

20. Properties of the Centers of a Triangle

21. Constructing Quadrilaterals

22. Properties of Quadrilaterals

23. Midsegments of Quadrilaterals

24. Angle Bisectors and Medians of Quadrilaterals

25. Investigating Area Relationships

26. Constructing Circles

27. Angles Formed by Intersecting Chords, Secants, and Tangents

28. Segments Formed by Intersecting Chords, Secants, and Tangents

29. Equations of Circles