In this section, we continue our discussion about triangles.

We will identify and construct medians, altitudes, and perpendicular bisectors of triangles. Next, we'll identify and use angle bisectors and properties of isosceles triangles.

Testing right triangles for congruence leads to using the Pythagorean Theorem and its converse.
Finally, we will apply the Pythagorean Theorem to find the distance between two points in the coordinate plane.