Mr. Baggett's Unit 5 Geometry Vocab

Front

In a triangle, a line or segment through the midpoint of a side, perpendicular to that side.

Back

Perpendicular Bisector

Front

Three or more lines intersecting at a common point.

Back

Concurrent Lines

Front

Intersection of concurrent lines.

Back

Point of Concurrency

Front

Point of concurrency of the perpendicular bisectors of a triangle.

Back

Circumcenter

Front

Point of concurrency of triangle's angle bisectors.

Back

Incenter

Front

In a triangle, a segment from a vertex to the midpoint of the opposite side.

Back

Median

Front

Point of concurrency of triangle medians.

Back

Centroid

Front

In a triangle, a segment from a vertex to the opposite side, perpendicular to that side.

Back

Altitude

Front

Point of concurrency of triangle altitudes.

Back

Orthocenter

Front

Reasoning that assumes the conclusion is false, leading to a contradiction of the hypothesis. If the assumption is false, the conclusion must be true.

Back

Indirect Reasoning