Fun with Mathematics

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Across
  1. 3. Space inside a shape
  2. 5. Letters used to represent the numbers
  3. 6. Maximum power of polynomial
  4. 8. Five points lie on a straight line
  5. 11. Collection of two or more equations with a same set of unknowns
  6. 12. In a triangle ABC if ∠A=53 and ∠C=44, then ∠B
  7. 13. Set of all real and imaginary numbers
  8. 16. In a cylinder, radius is doubled and height is halved, curved surface area is
  9. 19. The polynomial equation x(x+1)+8=(x+2)(x-2) is
Down
  1. 1. The shape, not a parallelogram
  2. 2. In triangle ABC, right angled at B, AB = 5cm and Sin c = 1/2 , Find length AC
  3. 4. An all round perimeter
  4. 7. Zeros of a function
  5. 9. A selfish average
  6. 10. This type of number is most important to factor
  7. 14. Volume of a cube is 343cm, then its edge
  8. 15. Sin 2B = 2 sin B is true when B is
  9. 17. Piece of circle between two points
  10. 18. Common endpoint of two rays forming the angle
  11. 20. Two parallel lines intersect at