GEOMETRY WORD PUZZLE

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Across
  1. 3. regular quadartual
  2. 4. circular base, sides go up to form a somewhat triangular circle-type shape
  3. 7. a geometrical object that is a three-dimensional analogue of a two-dimensional circle
  4. 9. A square + B square = C square theorem
  5. 11. a 3D shape bounded by 6 square faces
  6. 13. set of points which has infinite length but no width or height
  7. 15. any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
  8. 16. consists of all points in a plane
  9. 18. Same size / Equal
  10. 21. slightly flattened circle
Down
  1. 1. Perminter of a circle
  2. 2. 3 sides / 3 verticles
  3. 5. regular quadartual, with 4 right angles
  4. 6. six sided polygon
  5. 8. two pairs of parallel sides
  6. 10. consists of two points and the continuous part of a circle between them
  7. 12. all 3 sides equal
  8. 14. Plane figure made of segments to create a polygonal chain
  9. 17. formed by 2 or more rays/lines sharing a common endpoint, the sign is a degree symbol
  10. 19. quadrilateral, one pair of parrel sides
  11. 20. 3D solid, prism with a circle at the base