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11 Cards in this Set

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  • 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 two-thirds of the distance from a vertex to the midpoint of the side opposite the vertex on a median.