Geometry vocab crossword

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Across
  1. 3. written on or in a surface
  2. 7. elevation above sea level or above the earth's surface
  3. 10. relation with respect to comparative quantity or magnitude
  4. 11. ratio of the adjacent side to the hypotenuse of a right-angled triangle
  5. 13. a round three-dimensional closed surface
  6. 14. a combination of three or more notes that blend harmoniously
  7. 15. a group of nearly parallel lines of electromagnetic radiation
Down
  1. 1. a line enclosing a plane area
  2. 2. relating to or situated in or extending toward the middle
  3. 4. be at an angle
  4. 5. extending or lying across
  5. 6. the quality of being alike
  6. 8. a line that touches a curve at only one point
  7. 9. the act or action of enlarging, expanding, or widening
  8. 12. a parallelogram with four equal sides