Mathematics

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Across
  1. 4. the middle number of set
  2. 7. ________________ Theorem
  3. 9. the amount of space within a shape
  4. 11. the same
  5. 12. a mathematical statement that shows that 2 expressions are equal
  6. 13. the basic equation of a ___________ equation is y=mx+c
  7. 15. the space between 2 circles which share the same centre point
  8. 17. an angle inside a polygon
  9. 18. 1000000mg in 1 ________
  10. 22. 1000 ________ is 1 kilogram
  11. 24. irrational numbers
Down
  1. 1. the average
  2. 2. the top number of a fraction
  3. 3. the process of timesing 2 numbers together
  4. 5. an unknown number
  5. 6. a triangle with 2 equal sides and one different side
  6. 8. a triangle with 3 different sides
  7. 10. the area within a 3D shape
  8. 14. the largest number minus the smallest number in a set
  9. 15. the space between 2 intersecting lines
  10. 16. to reduce a number to its most basic form
  11. 19. the proportion of something compared to another
  12. 20. 100 centimetres
  13. 21. the gradient is determined by _________ over run
  14. 23. to work out the slope, rise over __________ is used.