1. Lesson 9.7
Circle Constructions pp

2. Objectives:
1. To construct the circumcenter, incenter, orthocenter, and centroid of a triangle.
2. To construct the circumscribed circle and inscribed circle of a triangle.
3. To construct regular polygons inscribed in circles.

3. Homework pp

4. ■ Cumulative Review
Construct the following and then justify your constructions.
21. An angle congruent to ABC A B C

5. ■ Cumulative Review
Construct the following and then justify your constructions.
22. A line perpendicular to AB that passes through point C A B C

6. ■ Cumulative Review
Construct the following and then justify your constructions.
23. A perpendicular bisector of AB A B C

7. ■ Cumulative Review
Construct the following and then justify your constructions.
24. A 45° angle

8. ■ Cumulative Review
Construct the following and then justify your constructions.
25. A 60° angle