maths

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Across
  1. 3. a bakers dozen
  2. 4. 1 100,000th of a second
  3. 7. a type of triangle with 2 equal line lengths
  4. 9. the symbol for division
  5. 10. 1 1bth of a sec
  6. 11. the only even prime number
Down
  1. 1. 60th of a minute
  2. 2. 1,000th of a sec
  3. 5. a shape with 6 sides
  4. 6. 1,000,000th of a sec
  5. 8. the only temp. that is the same in celcious and farenheit