GEOMETRY

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Across
  1. 1. 2 sets of parallel lines
  2. 3. 4 sides
  3. 5. Line through a circle
  4. 6. Gone one way forever and ever!
  5. 10. A type of area on the top!
  6. 13. 3 sides
  7. 14. no sides!
  8. 15. half the circle
  9. 17. has a number of sides
  10. 18. Goes on forever and ever!
Down
  1. 2. child of rhombus and square!
  2. 4. Measurement cubed
  3. 7. 4 sides and parallel lines
  4. 8. In degrees
  5. 9. excludes some top area
  6. 11. smooth unbroken segment of a curved line!
  7. 12. 4 right angles
  8. 16. Only a dot
  9. 17. the area something is in