math

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Across
  1. 2. the perimeter of a circle
  2. 3. width
  3. 8. the mean value
  4. 9. the amount of space something takes up
  5. 12. famous in Egypt
  6. 13. only 1 and itself
Down
  1. 1. the shape of diamonds
  2. 2. type of ice-cream
  3. 4. split up
  4. 5. a portion of something
  5. 6. the learning of shapes and measurement
  6. 7. how heavy something is
  7. 10. how fast something is travelling
  8. 11. 3.14159...