Mathematical Crossword

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Across
  1. 3. To find the largest possible value
  2. 4. all points equidistant from a given point
  3. 6. geometric figure formed at the intersection of two distinct lines
  4. 9. Two features that are situated the same way in different objects
  5. 14. data that can be modeled by a degree 2 polynomial
  6. 15. angle that has measure less than 90°
  7. 16. quadrilateral with two pairs of adjacent sides that are congruent
  8. 17. A rectangular (or square) array of numbers
  9. 18. part of a line starting at a particular point and extending infinitely in one direction
Down
  1. 1. total amount of space enclosed in a solid
  2. 2. assertion that can be proved true using the rules of logic
  3. 3. halfway between two given points
  4. 5. Letter or symbol
  5. 7. Parts of a sequence separated by commas
  6. 8. smallest positive integer into which two or more integers divide evenly
  7. 10. likelihood of the occurrence of an event
  8. 11. used to indicate square roots or nth roots
  9. 12. Cut into two congruent halves
  10. 13. result of adding a set of numbers or algebraic expressions