Math Crossword

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Across
  1. 3. splitting into equal parts or groups.
  2. 5. the two-dimensional extent of the surface of a solid, or of some part thereof, esp one bounded by a closed curve
  3. 6. the study of numbers, shapes and patterns
  4. 7. measures twice the radius
  5. 9. the Father of Mathematics.
  6. 10. a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the opposite side; the reciprocal of sine
Down
  1. 1. repeated addition.
  2. 2. a symbol representing an unspecified number that remains invariable throughout a particular series of operations
  3. 4. taking one number away from another.
  4. 8. parts per 100.