Mathematics

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Across
  1. 2. A shape with eight sides
  2. 6. A number that cannot be expressed as a fraction, such as π
  3. 9. Symbolic relationship between two variables
Down
  1. 1. The process of finding the value of a variable in an equatio
  2. 3. The opposite of addition
  3. 4. The result of multiplying two numbers together
  4. 5. Circular constant
  5. 7. A number that divides evenly into another number
  6. 8. A polygon with six sides