Geometry

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Across
  1. 1. Rectangular solid
  2. 4. Small curve of a circle
  3. 7. Cross at 90 degree angle
  4. 10. Distance around a circle
  5. 12. Four equal sides
  6. 13. Angle less than 90 degrees
  7. 14. Cross at less or more than 90 degrees
  8. 15. Parallel to the horizon
Down
  1. 1. Round shape
  2. 2. Angle more than 90 degrees and less than 180 degrees
  3. 3. Line from center to circumference
  4. 5. Slanted line
  5. 6. Perpendicular to the horizon
  6. 8. Starting point goes in any direction
  7. 9. Three sided shape
  8. 11. Angle 90 degrees
  9. 12. Angle 180 degrees