mathsssss

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Across
  1. 4. less than 90 degrees
  2. 6. adjacent/hypotenuse
  3. 7. y=mx+c
  4. 8. triangle with all sides different length
  5. 9. more than 90 degees
  6. 12. perimeter of a circle
  7. 14. exactly 90 degrees
  8. 16. two equal sided triangle
  9. 17. 3.142
  10. 18. measurement of a surface
  11. 19. opposite/adjacent
  12. 20. dealing with the relations of the sides and angles of triangles
Down
  1. 1. the amount of space that a substance occupies
  2. 2. half a diameter
  3. 3. sum of all sides
  4. 5. double a radius
  5. 10. opposite/hypotenuse
  6. 11. missing angle
  7. 13. geometry dealing with 2d and 3d shapes
  8. 15. the side opposite to the right angle
  9. 19. a quadrilateral with one pair of sides parallel