Maths crossword

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Across
  1. 2. The result of a multiplication
  2. 4. Represents parts of a whole
  3. 8. The product of the length and width
  4. 9. The result of a division
  5. 10. The number on the top of a fraction
  6. 11. The sum of the outer edges of a 2-dimensional shape
Down
  1. 1. The number on the bottom of a fraction
  2. 3. A 2D shape with 8 sides
  3. 5. An angle larger than 90 degrees
  4. 6. Letter used in algebra
  5. 7. An angle less than 90 degrees