Geometry Crossword

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Across
  1. 4. of equal importance, rank, or degree
  2. 6. elevation above sea level of above the earth's surface
  3. 7. a quantity obtained by the addition of a group of numbers
  4. 9. a quadrilateral whose opposite sides are parallel and equal
  5. 11. a surface generated by rotating a line around a fixed line
  6. 12. a shape with a circular base and sides tapering to a point
  7. 13. a plane curve with every point equidistant from the center
  8. 15. an angle less than 90 degrees but more than 0 degrees
Down
  1. 1. a specific identifiable position in a continuum or series
  2. 2. line enclosing a plane area
  3. 3. a straight line from the center to the perimeter of a circle
  4. 5. the length of the closed curve of a circle
  5. 8. relation with respect to comparative quantity or magnitude
  6. 10. a continuous portion of a circle
  7. 14. an area that is in the middle of some larger region