Ch. 5 Relationships in Triangles
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11 terms
Terms | Definitions |
|---|---|
 Perpendicular Bisector | A bisector is also perpendicular to the segment. |
| Concurrent Lines | When three or more lines intersect at a common point. |
| Point of Concurrency | The point where concurrent lines intersect. |
| Circumcenter | The point of concurrency of the perpendicular bisector. |
| Incenter | The angle bisector of a triangle are concurrent, and their point of concurrency. |
| Median | A segment with endpoints being a vertex of s triangle and the midpoint of the opposite side. |
| Centroid | Always inside the triangle. |
| Altitude | A segment from a vortex to the line containing the opposite side of perpendicular to the line containing that side. |
| Orthocenter | The lines containing the altitudes of a triangle are concurrent, intersecting at a point. |
| Indirect Reasoning | Assuming that a conclusion was false and then showing that this assumption led to a contradiction. |
| Indirect Proof/ Proof by Contradiction | Assume that what you are trying to prove is false. |
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