Maths

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Across
  1. 2. Used to express translation in geometry as well as forces in physics
  2. 7. The bottom part of a fraction
  3. 9. A number which exact value cannot be calculated
  4. 10. Five-sided polygon
  5. 12. The shape of a graph of a quadratic function
  6. 14. The result of multiplication
  7. 16. A figure formed by two rays (lines with one end)
Down
  1. 1. A collection of number or objects
  2. 3. A formula of the form A=B
  3. 4. Upper boundary of y=tanx range
  4. 5. A quadrilateral with two pairs of parallel sides
  5. 6. Usually the x-axis is...
  6. 8. The longest chord in a circle
  7. 11. Opposite of convex
  8. 13. Two angles sharing a common ray are...
  9. 15. Unit of measure of an angle