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Across 2. a segment, ray, line, or plane that intersects a segment at its midpoint 4. segments that have the same length 6. consists of a point and all points on the line that extend in one direction 7. angles that have the same measure 11. extends in one dimension 12. an angle with a measure less than 90 degrees 15. 2 angles whose measure have the sume of 180 degrees 16. rules that are accepted without proof 17. an angle with a measure between 90 and 180 degrees 20. 2 different rays that have the same point 21. 2 angles whose sides form 2 pairs of opposite rays 22. and angle witha measure of 180 degrees 23. if C is between A and B, the CA and CB are opposite rays

Down 1. 2 angles whose measure have the sum of 90 degrees 3. 2 lines that intersect to form a right angle 5. a ray that divides an angle into 2 adjacent angles that are congruent 6. a 90 degree angle 8. part of line that consists of 2 points and all points between the endpoints 9. an unrpoven statement that is based on observation 10. the point that divides a segment into 2 congruent segments 13. 2 adjacent angles whose noncommon sides are opposite rays 14. 2 lines that never intersect 18. extends in 2 dimensions 19. a small dot with no dimension