Create 4 slides showing each of the four concurrent lines with their four points of concurrency. You can create the triangles yourself based off of images from your notes or the internet. You can also screen shot or copy images from internet searches. You need to create 4 slides 1 slide showing each of the following. Make sure your triangles are marked appropriately.

1. Three medians meeting at the centroid.

2. Three altitudes meeting at the orthocenter.

3. Three perpendicular bisectors meeting at the circumcenter.

4. Three angle bisectors meeting at the incenter.