Essentials of Geometry

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Across
  1. 3. Position in space
  2. 5. lines in the same plane that never intersect
  3. 7. set of points in a straight path that extends infinitely in both directions
  4. 8. A portion of a line that extends from one endpoing infinitely in one direction
  5. 9. two lines whose intersection forms right angles
  6. 11. equal measure
Down
  1. 1. Points that lie on the same line
  2. 2. A flat surface that extends infinitely in all directions
  3. 4. A set of all the points in a plane equidistant from a given point
  4. 6. A point that bisects a line segment
  5. 10. Part of a line that consists of two endpoints and all the points between them
  6. 11. Three or more points that lie in the same plane