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Across 3. A ray that divides an angle into two adjacent angles that are congruent 4. To have one or more points in common 5. The point of concurrency of the perpendiculare bisectors of a triangle 7. The point that divideds, bisects, a segment into two congruent segments 8. A ray that divides an angle into two adjecent angles that are congruent 9. The perpendicular segment from a vertex of a triangle to the opposite side or to the line that contains the opposite side 10. Three or more lines that intersect in the same point 12. The point of intersection of concurrent lines 13. A segment that connects the midpoints of two sides of a triangle 14. A segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side 15. The point of concurrency of the lines containing the altitudes of a triangle

Down 1. A segment, ray, line, or plane that is perpendicular to a segment at its point 2. Two lines that intersect to form a right angle 6. The point of concurrency of the angle bisectors of a triangle 11. The point of concrurrency of the median of a triangle