Crossword for 10th

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Across
  1. 2. one of the angles is greater than 90 degrees
  2. 5. the branch of mathematics that measures the uncertainty of the occurrence of an event using numbers is
  3. 6. all the three sides of a triangle are equal and each angle measures 60 degrees
  4. 10. all the angles are smaller than 90 degrees
  5. 11. all the three sides of the triangle are of different measure
  6. 12. a polynomial whose degree is one is called
  7. 14. is a result of a random experiment
  8. 16. an event that has a 100% probability of occurrence is
  9. 17. an event that has no chance of occurring is
Down
  1. 1. a polynomial of degree two is called
  2. 3. probability a trial of probability is when the experiment is performed once
  3. 4. an event having only one outcome of the experiment is
  4. 7. any two sides of the triangle are of equal length
  5. 8. any one of the three angles is equal to 90 degrees
  6. 9. a polynomial of degree three is called
  7. 13. is a set of outcomes
  8. 15. the sum of the probabilities of all the elementary events of an experiment is