Extra-Credit Math Crossword Puzzle

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Across
  1. 2. an angle of more than 90 degrees
  2. 4. - a 2-dimensional "space", and flat surface that extends in all directions, intersecting at lines.
  3. 8. Rise/Run
  4. 9. Reasoning with logic common sense
  5. 12. points on the same line
  6. 13. points on the same plane
  7. 14. an angle that equals 90 degrees
  8. 15. segments Segments with the same length
Down
  1. 1. lines that are not parallel and never intersect
  2. 3. an angle that equals 180 degrees
  3. 5. striaght, going in opposite directions for infinity, interesting at a single point, make-up angles, and one dimensional.
  4. 6. lines two lines that intersect at a right angle
  5. 7. a location in space with 0 dimensions - no size
  6. 10. Reasoning with patterns
  7. 11. an angle that is less than 90 degrees