Across
- 1. Segment whose endpoints are a vertex and the midpoint of the opposite side
- 2. Perpendicular segment from a vertex to the line containing the opposite side
- 4. Point of concurrency of the medians
- 7. Three or more lines that intersect at one point
- 10. Point at which concurrent lines intersect
- 11. Circle that has the circumcenter as its center
- 12. The length of the perpendicular segment from the point to the line
Down
- 1. A segment connecting the midpoints of two sides
- 3. Point of concurrency of the altitudes
- 5. Point of concurrency of the angle bisectors
- 6. Point of concurrency of the perpendicular bisectors
- 8. Proof using coordinate geometry and algebra
- 9. Circle that has the incenter as its center