9th Crossword (B)

1234567891011121314151617181920
Across
  1. 4. A polynomial with degree three
  2. 7. Treaty signed between France and Britain after Seven Years' War
  3. 9. Two tangents drawn from an external point to a circle are always.....
  4. 11. Proof used to show √2 is not rational
  5. 13. Largest producer of coffee in the world
  6. 15. The first Governor - General of India.
  7. 17. Equal chords of a circle subtend equal ......
  8. 18. The graph of a quadratic polynomial is a .....
  9. 19. Revolt of 1857 began in this city
  10. 20. A line dividing a line segment into a given ratio
Down
  1. 1. The reciprocal of cosine
  2. 2. The most important metallic mineral used for making steel.
  3. 3. Division of power between Centre and State
  4. 5. Black soil is best suited for this crop.
  5. 6. Square of standard deviation
  6. 8. Political leader who led the Bolshevik Revolution
  7. 10. Law making body at the national level
  8. 12. Numbers having no common factor other than 1
  9. 14. The difference between highest and lowest values in data.
  10. 16. India's largest glacier, located in Ladakh