Chapter 1 Crossword Puzzle

123456789101112131415161718
Across
  1. 4. Any segment, line, plane, or point that intersects a line segment at its midpoint.
  2. 8. A boundless three-dimensional set of all points.
  3. 9. The point on a line segment halfway between the endpoints of the segment.
  4. 12. Point C is between A and B if and only if A, B, and C are collinear and AC + CB = AB.
  5. 13. Line segments that are the same length.
  6. 16. A flat surface made up of points that has no depth and extends indefinitely in all directions.
  7. 18. A measurable part of a line that consists of two points, called endpoints, and all of the points between them.
Down
  1. 1. The length of the line segment between two points.
  2. 2. Two figures are congruent if one can be obtained from the other by a sequence of rotations, reflections, and translations.
  3. 3. A set of points common to two or more geometric figures.
  4. 5. Lying on the same line.
  5. 6. A location with no size, only position.
  6. 7. A line segment with an initial endpoint and a terminal endpoint.
  7. 10. Points that do not lie on the same line.
  8. 11. Separate a line segment into two congruent segments.
  9. 14. Points that do not lie in the same plane.
  10. 15. Lying in the same plane.
  11. 17. A line is made up of points, has no thickness or width, and extends indefinitely in both directions.