Maths

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Across
  1. 3. sum of three angles of a _________ is 180
  2. 5. equilateral quadrilateral
  3. 7. line segment joining the centre of the circle to any point on the circle itself
  4. 9. three or more points that lie in a straight line
  5. 11. relationship between two lines which meet at a right angle
  6. 14. Algebric Expression which has two or more Terms
  7. 15. Every point on the number line represents a unique real number
  8. 16. All the rational numbers and irrational numbers taken together
  9. 17. line that passes through two lines in the same plane
  10. 18. ________ is a Whole Number
  11. 20. __________ is a Rational Number
  12. 21. Quadrilateral with two pairs of parallel sides
  13. 22. equiangular quadrilateral
Down
  1. 1. Indian Astronomer and Mathematician
  2. 2. line segment whose endpoints lie on the circle
  3. 4. Numbers between two rational numbers are __________
  4. 6. Greek Genius - PI Decimal Expansion
  5. 8. Two angles whose sum is 180 degrees
  6. 10. Every Whole Number is a _________ Number
  7. 11. Two lines on a plane that never meet
  8. 12. Two distinct point in a plane determine a _____________ line
  9. 13. regular quadrilateral
  10. 19. closed figure that is the union of line segments in a plane
  11. 21. Greek philosopher and mathematician