Maths words

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Across
  1. 2. A polygon with eight sides
  2. 4. The length of the boundary of a closed figure
  3. 5. A mathematical statement showing that two expressions are equal
  4. 7. The distance around a circle (its perimeter)
  5. 9. One of the symbols of a number system most commonly the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9
  6. 10. A standard used in measuring
Down
  1. 1. The number of times an event occurs; or the number of individuals(people, animals etc.) with some specific property
  2. 3. Two or more geometric figures that are the same in every way except their position in space
  3. 6. The likelihood of an event happening.
  4. 8. the distance from the centre to any point on the circle