Maths

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Across
  1. 3. The toughest chapter in maths
  2. 6. An instrument used to draw circles
  3. 7. An instrument used to measure distance place in a map
  4. 8. An item used for calculate numbers
  5. 10. Perimeter of the circle
Down
  1. 1. An instrument used for measuring particular units
  2. 2. To find the area of a cirle
  3. 4. A tool used for measuring and drawing math figure
  4. 5. To find whether a shape is a polyhedren
  5. 9. segment A particular line from place to other