International Day of Mathematics Celebration 14 March 2025

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Across
  1. 3. - The Greek letter that represents circumference/diameter.
  2. 5. - Pi has an __ number of decimal places.
  3. 6. - Half of the diameter of a circle.
  4. 9. - Pi can be approximated using an inscribed __ inside a circle.
  5. 10. - A mathematical sequence related to circles and spirals.
  6. 13. - A trigonometric function that frequently uses pi in its calculations.
  7. 15. - The ratio of a circle’s circumference to its ____.
  8. 17. - The formula (4/3) * pi * r^3 calculates the __ of a sphere.
  9. 18. - The formula for the circumference of a circle (C=..., use *).
  10. 19. - Pi is commonly used in this branch of mathematics that studies shapes.
  11. 20. - The shape formed by cutting a circular pizza into equal slices.
  12. 21. - The formula for the area of a circle (A=..., use * and ^).
  13. 22. - The 14th day of this month is celebrated as Pi Day.
Down
  1. 1. - The shape most commonly associated with pi.
  2. 2. - The value of pi was first rigorously approximated by this ancient Greek mathematician.
  3. 4. - The infinite sequence of digits in pi is an example of this type of decimal.
  4. 7. - The constant pi is approximately equal to this fraction (22/__ ).
  5. 8. - Another trigonometric function that often involves pi.
  6. 9. - A circular dessert often eaten on Pi Day.
  7. 11. - Pi is an example of this type of number, meaning it never ends and never repeats.
  8. 12. - A line segment connecting two points on a circle.
  9. 14. - A famous scientist born on Pi Day (March 14).
  10. 16. - The mathematician who linked pi to e in a famous equation.
  11. 23. - The total distance around a circle.