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11 Cards in this Set
 Front
 Back
perpendicular bisector

a line, segment, or ray that passes through the midpoint of the side and is perpendicular to that side


circumcenter

point of concurrency for perpendicular bisectors


angle bisector

a line, segment, or ray that divides an angle into two congruent parts


incenter

point of concurrency for angle bisectors


median

a segment whose endpoints are a vertex of a triangle and the midpoint of the side opposite the vertex


centroid

point of concurrency for medians


altitude

a segment from a vertex to the line containing the opposite side and perpendicular to the line containing that side


orthocenter

point of concurrency for altitudes


Circumcenter Theorem

The circumcenter of a triangle is equidistant from the vertices of the triangle.


Incenter Theorem

The incenter of a triangle is equidistant from each side of the triangle.


Centroid Theorem

The centroid of a triangle is located twothirds of the distance from a vertex to the midpoint of the side opposite the vertex on a median.
