Mathematics crossword class 9th (by Amal Prabha)

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Across
  1. 2. A branch of mathematics dealing with derivatives and integrals
  2. 4. The result of multiplying a number by itself
  3. 5. A polygon with four sides
  4. 9. The longest side of a right triangle
  5. 10. A number that is the sum of its positive divisors, excluding itself
Down
  1. 1. The distance around a circle
  2. 3. The number of elements in a set
  3. 6. A triangle with all sides of different lengths
  4. 7. The study of shapes, sizes, and properties of figures
  5. 8. The value that appears most frequently in a data set