# Properties of the Centers of a Triangle

High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This lesson requires the use of Cabri, Jr.

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CCSS:
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##### Included Materials - Join to Access

- Teacher Notes Appendix A
- Teacher Notes Appendix B
- Activity 20: Properties of the Center of a Triangle
- CBIG2001.8xv
- CBIG2002.8xv
- Project
- Vocabulary
- Worksheet

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