ı am in life

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Across
  1. 2. What are the line segments connecting the vertices of a polygon called?
  2. 3. What is the value that occurs most frequently in a data set called?
  3. 5. What is the probability of an event occurring called in mathematics?
  4. 7. set What is the name of the symbol Ø for the empty set?
  5. 9. Who said “Those who don’t know geometry cannot enter”
Down
  1. 1. What is the sum of the interior angles of a triangle in degrees?
  2. 4. What is the name of the longest side in a right triangle?
  3. 5. (3.1415) What is the mathematical constant approximately equal to 3.1415 called?
  4. 6. What is it called when an angle is less than ninety degrees?
  5. 8. How many digits do we use?