Math Crossword

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Across
  1. 1. a mathematical relationship rule expressed in symbols
  2. 4. a solid or hollow object that tapers from a circular or roughly circular base point
  3. 5. root a number that produces a specified quantity when multiplied by itself
  4. 9. the center of the in circle of a triangle or other figure
  5. 10. the space between two intersecting line
  6. 11. a straight line passing from a side to side through the center
  7. 13. a plane figure with three straight sides and three angles
  8. 14. the branch of mathematics concerned with the properties and relations of points
  9. 17. trigonometry
Down
  1. 2. the exact middle point
  2. 3. the action of rotating around on axis or center
  3. 5. a round solid figure of its surface
  4. 6. a round plane figure whose boundary consists of points equidistant from a fixed point
  5. 7. an immoral act considered to be a transgression against divine law
  6. 8. a plane figure with four straight sides and four right angles
  7. 12. a long narrow mark or band
  8. 15. a period of time equal to sixty seconds of a sixtieth of an hour
  9. 16. triangle a triangle with a right angle
  10. 18. a line with a single endpoint