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### 18 Cards in this Set

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 concurrenct lines, segments, or rays Lines, segments, or rays that intersect in a single point. centroid The center of gravity circumcenter Point of concurrency of three perpendicular bisectors of the sides of a triangle. incenter Point of concurrency of the angle bisectors in a triangle. orthocenter Point of concurrency of the three altitudes or the lines through the altitudes of a triangle. altitude The perpendicular distance from the vertex to the base. midpoint A point halfway between a line segment. median A line segment joining a vertex of an triangle with the midpoint of the opposite side. rhombus A parallelogram with four equal sides and oblique angles. concurrenct lines, segments, or rays Lines, segments, or rays that intersect in a single point. centroid The center of gravity circumcenter Point of concurrency of three perpendicular bisectors of the sides of a triangle. incenter Point of concurrency of the angle bisectors in a triangle. orthocenter Point of concurrency of the three altitudes or the lines through the altitudes of a triangle. altitude The perpendicular distance from the vertex to the base. midpoint A point halfway between a line segment. median A line segment joining a vertex of an triangle with the midpoint of the opposite side. rhombus A parallelogram with four equal sides and oblique angles.