algebra/math

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Across
  1. 5. to the power of
  2. 6. halfway across a circle
  3. 7. all the way across the circle
  4. 8. polygon with 3 sides
  5. 10. more than 90 degrees
Down
  1. 1. closed figure with multiple sides
  2. 2. less than 90 degrees
  3. 3. character representing a number. (typically an x)
  4. 4. measurement around the figure
  5. 9. the sum of 2 number