Mathematical Week

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Across
  1. 3. A mathematical object that has length and width, but not height
  2. 6. A number that is not divisible by any number other than itself and one
  3. 9. The result of multiplication
  4. 11. A body of degree equal to two cubes
  5. 13. The number to be divided, divisor
  6. 17. A term used to describe geometric concepts
  7. 18. One of the three main trigonometric functions.
  8. 19. Otherwise called a numerical expression
  9. 20. This corresponds to the value of a number.
Down
  1. 1. The country where the mathematician Archimedes was born
  2. 2. First step in performing multiplication.
  3. 4. Exists within the interval between -1 and 1.
  4. 5. A geometric figure with 6 angles.
  5. 7. The smallest common multiple
  6. 8. The primary geometric figure whose area equals the product of its length and width
  7. 10. The first number in a particular sequence of digits.
  8. 12. An expression containing two parts separated by a plus sign
  9. 14. An expression consisting only of numbers
  10. 15. Lines that never intersect
  11. 16. Mathematical term representing inequality