Advanced Geometry

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Across
  1. 2. lines that dont intersect and arent coplanar
  2. 3. a number after zero
  3. 4. a line that goes from left to right
  4. 6. a number before zero
  5. 8. angles that add up to 90 degrees
Down
  1. 1. a line that goes up and down
  2. 2. angles that add up to 180 degrees
  3. 5. a line that intersects two or more coplanar lines at different points
  4. 7. a number that is neither positive nor negative
  5. 9. lines that dont intersect