Geometry crossword puzzle

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Across
  1. 2. a quadrilateral with exactly one set of parrellel sides
  2. 4. relating to or situated in or extending toward the middle
  3. 6. lines coplanar lines that do not intersect
  4. 8. angle angle that measures 180
  5. 9. a particular aspect of life or activity
  6. 12. another term for hendecagon
  7. 14. part of a line that starts at a point and extends to infinity
  8. 15. one of the eight divisions of three-dimensional space
  9. 17. a parallelogram with four right angles
  10. 20. the study of geometric figures in two dimensions and three dimensions
  11. 22. a polygon with 8 sides
  12. 23. a shape with a circular base and sides tapering to a point
  13. 24. lying in the same plane
  14. 28. a line segment, line or plane that divides a geometric figure into two congruent halves
  15. 29. corresponding in character or kind
  16. 30. written on or in a surface
  17. 35. the intersection of the y and x coordinate planes
  18. 36. rays two collinear rays with a common endpoint
  19. 40. angles that are opposite one another at the intersection of two lines
  20. 42. a polygon with 5 sides
  21. 43. a line which passes through atleast two points of a circle
  22. 45. a quadrilateral with both pairs of opposite sides parallel
  23. 46. 4 sided polygon
  24. 47. a polyhedron with two congruent and parallel faces
  25. 48. a point or value that marks the end of a ray
Down
  1. 1. a line segment that connects center of circle to outer edges
  2. 2. the ratio of the length of the leg opposite to the length of the leg adjacent to the angle
  3. 3. a polygon with 6 sides
  4. 4. the longer of the two arcs between 2 points on a circle
  5. 5. the slope of a horizontal line
  6. 7. the 90 degree angle between two perpendicular lines
  7. 10. a polygon with 10 sides
  8. 11. the definite distance between 2 points
  9. 13. a continuous portion of a circle
  10. 16. angles two angles with measures that have a sum of 180
  11. 18. a line segment between two points on the circle or sphere that passes through the center
  12. 19. a parallelogram with four equal sides
  13. 21. the point at which the line crosses at the y-axis
  14. 25. a group of nearly parallel lines of electromagnetic radiation
  15. 26. a complete circular arc. also refers to the distance around the outside of a figure
  16. 27. a polygon with 9 sides
  17. 31. the ratio of the length of the leg opposite an angle to the lenght of the hypotenuse
  18. 32. area the sum of the areas of all faces and side surfaces of a three-dimensional figure
  19. 33. the point at which the line crosses at the x-axis
  20. 34. is undefined and contains undifinetly many points
  21. 37. the sum of the lengths of the sides of a polygon
  22. 38. two rays with a common vertex
  23. 39. an angle less than 90 degrees but more than 0 degrees
  24. 41. in or near an inner area
  25. 44. relation with respect to comparative quantity or magnitude