Geometry Definitions

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Across
  1. 4. the point halfway between two given points
  2. 9. a zero dimensional figure
  3. 10. equal in size and shape
  4. 11. two lines that do not intersect
  5. 13. the length around the outside of a geometric shape
  6. 15. angles opposite one another at the intersection of two lines
  7. 19. a geometric figure with no indentations
  8. 20. all points between two given points
  9. 21. two angles in a plane which share a common vertex and side
  10. 25. two supplementary adjacent angles whose uncommon sides form a line
  11. 27. two angles when added together equal to 90 degrees
  12. 31. a point in a network where two different segments share the same endpoints
  13. 32. unit used to measure angles
  14. 33. a geometric drawing that uses a limited set of tools
  15. 38. three dimensional figure with a single base tapering to an apex
  16. 40. an angle whose measure is greater than 90 degrees but less than 180 degrees
  17. 41. an angle that measures less than 90 degrees
  18. 43. segment that helps to make up a face
  19. 44. the segment whose endpoints are any point on a circle or sphere and its center
Down
  1. 1. a sequence of justified conclusions used to prove the validity
  2. 2. Term a term not able to be defined
  3. 3. point B is between point A and C
  4. 5. an angle that measures 90 degrees
  5. 6. a three dimensional surface without any holes
  6. 7. two angles when measured together equal 180 degrees
  7. 8. a number that identifies a point on a number line
  8. 9. 2 segments, rays or lines that form a 90 degree angle
  9. 12. the side opposite the right angle in a right triangle
  10. 14. the length of the middle of the circle or sphere
  11. 16. a shape or solid which has an indentation or cave
  12. 17. the surface of a conic solid whose base is a polygon
  13. 18. mathematical statements which can be proven by postulates, definitions
  14. 19. the base is a circle
  15. 22. the distance around the outside of a circle
  16. 23. two rays sharing a common endpoint
  17. 24. the geometric figure formed by two points
  18. 26. a statement assumed to be true without proof
  19. 28. a union of three or more segments where each segment intersects 2 other segments
  20. 29. a two dimensional group of points that goes on infinitely in all directions
  21. 30. a line segment, line or plane that divides geometric figure into two congruent halves
  22. 34. the set of points in space equal distance from a certain point
  23. 35. a part of a line starting at a particular point and extending infinitely
  24. 36. two rays with a common endpoint that form a line parallel two distinct coplanar lines
  25. 37. lines in three dimensional space that do not intersect and are not parallel
  26. 38. lying on the same line
  27. 39. in the same plane
  28. 41. the amount of space taken up in a plane by a figure
  29. 42. the surface of a cylindric solid whose base is a polygon