Crossword math puzzle

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Across
  1. 5. is a fundamental relation in Euclidean geometry
  2. 8. type of number is not equal to zero
  3. 9. whole valued positive or negative number
  4. 12. is a polygon with three edges
  5. 13. that moves every point
  6. 15. involving one or more variables
  7. 17. is a closed path that encompasses
  8. 18. is geometry a coordinate system
  9. 20. is a moving form eduence space
Down
  1. 1. numerical measure of a line inflations related
  2. 2. the vertex from a quadrant’s answer
  3. 3. to works an answer
  4. 4. is the model of the common concept on a surface
  5. 6. equation in which they are set equal to each other
  6. 7. is a function from a metric space
  7. 10. a concept in geometry in certain motion
  8. 11. is a function
  9. 14. expressing the amount of b de mention
  10. 16. involves finding the probability or one even occurring
  11. 19. the quantity that expreses of a region on the plane