1. 8.3 Medians and Altitudes of Triangles
Essential Question: How can you find the balance point or center of gravity of a triangle?

2. Median- a segment whose endpoints are a vertex of a triangle and the midpoint of the opposite side

3. Centroid(center of gravity)- the point of concurrency of the three medians of a triangle

5. First: Find and plot
midpoints using
midpoint formula.

7. Altitude- a perpendicular segment from a vertex to the line containing the opposite side (altitude can be inside, outside, or on the triangle)
Orthocenter- the intersection (or point of concurrency) of the lines that contain the altitudes
Tear out pages
Problems 4, 12, 13, 14, 18(find the centroid)

8. 4. C,F,I,B,E,A,H,D,G
12. (1,2)
13. (5, -0.5)
14. (8.5, 3)
18. (5,3)