Mathematics

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Across
  1. 5. A conseption which does not need an evidence
  2. 7. Geometric figure which consists by three points which do not lie on a straight line
  3. 10. A circle which is outside of triangle
  4. 11. A 3D figure which faces are squares
  5. 13. A part of geometry which study figures in 3D
  6. 14. A abscissa point of the unit circle
Down
  1. 1. A instantaneous speed at time t
  2. 2. A line which divides in half the opposite side
  3. 3. Line segment which has direction
  4. 4. A point of intersection of heghts
  5. 6. Pyramid the base of which is a triangle
  6. 8. A circle which is inside of triangle
  7. 9. Variable that changes depending on the value of the other changes
  8. 12. A line which divides the angle on two equal angles
  9. 15. An ordinate point of the unit circle