1. Math Humor
Q: What do you do when it rains?
A: Coincide!

2. LT 5.3: Apply properties of medians and altitudes of triangles

5. Example
In , RL = 21, and SQ = 4.
Find each length. LS 14 NQ 12

6. Example
A sculptor is shaping a triangular piece of iron that will balance on a point of a cone. At what coordinates will the triangular region balance?
Point of intersection of 3 medians, so find 2 Midpoint (8,6.5) (7, 4) (9, 4.5) x = 8 and y = x – 3 (8, 5)

8. Example
Find the orthocenter of ΔXYZ with vertices X(-4, 2), Y(-2, 6), and Z(2, 2).