**5.3: Medians and Altitudes of Triangles**

Definitions:

Definitions:

**Centroid of a Triangle**- The point of concurrency of the medians of a triangle

**Altitude of a Triangle**- A perpendicular segment from a vertex to the line containing the opposite side

**Orthocenter of a Triangle**- The point where lines containing the altitudes are concurrent

**Theorems:**

**Examples:**