Maths crossword puzzle

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Across
  1. 1. 2 polygons of the same number of sides are similar
  2. 2. Area of circle
  3. 5. p/q(q≠0)
  4. 7. Is a proven statement used for proving another statement
  5. 8. inconsistent line
  6. 9. degree 3 polynomial
  7. 11. Trignometry angle
  8. 12. Algebraic method
Down
  1. 1. an intersecting curve in graph
  2. 3. Angle above the line of sight
  3. 4. CSA of cone
  4. 6. line intersecting the circle at only one point
  5. 9. fixed number in AP
  6. 10. Trigonometry angle