GEOMETRY WORD PUZZLE

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