~ Mathematics ~

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Across
  1. 4. A shape with an angle sum of 180 degrees
  2. 7. An angle that is less than 90 degrees
  3. 8. The distance across a circle
  4. 9. An angle that is greater then 90 degrees
Down
  1. 1. An equation or expression which includes both numerals and pronumerals
  2. 2. The area around a circle
  3. 3. An angle that is greater than 180 degrees
  4. 5. The distance from the centre of a circle to the edge
  5. 6. A shape with four equal sides
  6. 8. A shape that contains 10 sides