MATHS

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Across
  1. 6. double,triple
  2. 7. other word for addition
  3. 8. surface area of a cone
  4. 10. SA of sphere
  5. 11. πr square h/3
  6. 12. distribute
  7. 13. evrery number divisible by two
Down
  1. 1. a2 + b2 = c2
  2. 2. great mathematician
  3. 3. other word for subtraction
  4. 4. basic rule to solve an equation
  5. 5. chaarpie r square
  6. 7. 3,4,5
  7. 8. volume of cylinder
  8. 9. subject