Ch. 1 Geometry

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Across
  1. 4. Words that do not have formal definitions, but there is agreement about what they mean
  2. 7. Consists of two different rays with the same endpoint
  3. 9. Has no dimension. It is represented by a dot
  4. 11. A polygon with all congruent sides
  5. 12. Two adjacent angles in which their noncommon sides are opposite rays
  6. 13. No line that contains a side of the polygon contains a point in the interior of the polygon
  7. 17. Part of a line consisting of two endpoints and all points between them
  8. 18. Segments that have the same length
  9. 19. A rule/statement that can be proven
  10. 20. A polygon that is equilateral and equiangular
  11. 22. A closed plane figure that is formed by three or more line segments and each side intersects exactly two sides so that no two sides with a common endpoint are collinear
  12. 25. On the same plan
  13. 28. Two collinear rays with the same endpoint
  14. 29. A polygon with all congruent angles
  15. 30. Not convex
  16. 31. A point, ray, line, segment, or plane that intersects the segment at its midpoint
  17. 33. The point that divides the segment into two congruent segments
Down
  1. 1. An angle whose measure is equal to 180 degrees
  2. 2. Two angles that share a common vertex and side, but have no common interior point
  3. 3. Two nonadjacent angles formed by two intersecting lines
  4. 5. How many directions space takes up
  5. 6. Angles whose sum is 180 degrees
  6. 7. An angle whose measure is less than 90 degrees
  7. 8. Angles whose sum is 90 degrees
  8. 10. On the same line
  9. 14. An angle whose measure is 90 degrees
  10. 15. Where two line segments meet
  11. 16. A ray that divides an angle into two congruent angles
  12. 21. Set of points the figures have in common
  13. 23. An angle whose measure is greater than 90 degrees and less than 180 degrees
  14. 24. Has one dimension. It is represented by a line with two arrowheads, but extends without end
  15. 26. Has two dimensions. It is represented by a shape that looks like a floor or a wall, but extends without end
  16. 27. A polygon with n sides
  17. 32. Part of a line consisting of one endpoint and all the points of the line on one side of the endpoint