Puzzling Math

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Across
  1. 3. mathematics of the properties and relationships of points,lines,angles,surfaces,and solids.
  2. 4. chance of an event occurring.
  3. 7. number of cubic units it takes to fill a solid.
  4. 8. surface of in which one side is higher than the other.
  5. 9. statement that two mathmatical expressions are equal.
  6. 10. quanity that can have different values.
Down
  1. 1. measure,in square units,of the region of a 2 dimensional figue.
  2. 2. variables to express rules about number.
  3. 5. variable or combanation of variables,numbers,and symbols
  4. 6. ratio of the circumfernce of any circle to its diameter.