Maths crossword puzzle

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Across
  1. 2. A circle is a collection of all ____ in a plane
  2. 5. Other name for a solution of an equation
  3. 7. Two or more circles having the same centre
  4. 8. imaginary line at the level of eye sight
  5. 10. A line and a circle having no common point
  6. 11. The tangent is a special case of the ____
Down
  1. 1. the fixed number added to the preceding term of an AP
  2. 3. line drawn from the observer's eye to the object
  3. 4. An AP containing limited terms is called a ____ AP
  4. 6. The line containing the radius through the point of contact
  5. 9. Equation which determines whether a quadratic equation has real roots or not