Across
- 4. a solid consisting of all points in space a given distance from a specific point
- 6. the point on a segment that is equidistant to both endpoints
- 10. describes an angle that measures 90°
- 11. describes two coplanar angles with a common side and vertex, and no common interior points
- 16. part of a line that extends forever in one direction starting from an endpoint
- 17. describes a pair of rays that share the same endpoint and together form a line
- 20. on the same line
- 22. the negative or opposite meaning of a statement
- 23. a conditional derived by exchanging the hypothesis and conclusion of another conditional
- 24. to suggest something is true without explicitly stating it
- 26. a solid enclosed only by polygons
- 28. a statement that can be written with a hypothesis following the word 'if' and a conclusion following the word 'then'
- 29. a segment with endpoints on a circle that contains the center of the circle
- 32. a statement that combines a conditional and its converse, written by joining the two statements with the phrase "if and only if"
- 34. all coplanar points equidistant from a given point
- 35. a convincing argument that uses deductive reasoning to validate a conjecture
- 36. a polyhedron with all but one face intersecting at a common vertex
- 38. the common endpoint of the two rays that form an angle
- 41. describes an angle whose measure is between 0° and 90°
- 42. a description of sides having equal measures
- 44. an enclosed three-dimensional figure
- 47. a conclusion reached using inductive reasoning
- 48. describes two angles whose sides are opposite rays
- 50. any example that shows a conjecture is false
- 52. a sentence that is either true or false
- 55. describes noncoplanar lines (nonparallel and nonintersecting)
- 58. the set of all points two or more figures have in common
- 59. describes an angle with a measure between 90° and 180°
- 60. describes segments with the same length or angles with the same measure
- 62. an undefined term described as an infinite number of points forming a straight path that extends forever in opposite directions that has no width or thickness
- 65. describes an angle that measures 180°
- 66. the absolute value of the difference of the coordinates of two points
- 67. a segment with one endpoint at a circle's center and the other on the circle
- 68. a polygonal surface of a solid
Down
- 1. a solid with one flat surface, one vertex not in the same plane as the flat surface, and a curved surface connecting the two
- 2. a unit of measure for angles or arcs defined as 1/360th of a complete revolution
- 3. to divide a figure into two congruent figures
- 5. a segment formed by two intersecting flat surfaces
- 7. describes a logical thinking process that reaches conclusions based on patterns, specific examples, or past events
- 8. an undefined term described as an infinite number of points forming a flat surface that extends forever in all directions that has no thickness
- 9. describes coplanar lines that do no intersect
- 12. a line that intersects two or more coplanar lines at distinct points
- 13. describes a polygon with all diagonals located in the interior of the polygon
- 14. a segment joining two nonconsecutive vertices of a polygon
- 15. a figure formed by two rays with the same endpoint
- 18. a statement made as the result of reasoning, sometimes following the word 'then'
- 19. the distance around an enclosed figure
- 21. a description of angles having equal measures
- 25. a description of planes, lines, rays, or segments which intersect to form a right angle
- 27. a solid with two congruent parallel flat surfaces and a curved surface connecting the two
- 28. describes an angle pair whose measures have a sum of 90°
- 30. any contiguous set of points
- 31. an undefined term described as a single location having no size or shape
- 33. a conditional derived from the converse and inverse of another conditional
- 34. on the same plane
- 37. the perimeter of a circle
- 39. a mathematical statement that two expressions are equal
- 40. describes a polygon that is both equilateral and equiangular
- 43. describes a polygon with at least one diagonal located in the exterior of the polygon
- 45. describes an angle pair whose measures have a sum of 180°
- 46. a closed coplanar figure formed by three or more segments joined only at their endpoints
- 49. having the same truth value
- 51. a statement made as the basis of reasoning, sometimes following the word 'if'
- 52. part of a line that consists of two endpoints and all points between them
- 53. a conjecture or statement that can be proven using logical reasoning
- 54. a point that marks the end of a continuous set of points
- 56. a statement that is accepted as true without proof
- 57. a regular quadrilateral
- 61. a conditional derived by negating the hypothesis and conclusion of another conditional
- 63. describes a pair of adjacent and supplementary angles whose noncommon sides are opposite rays
- 64. a polyhedron with a pair of parallel congruent polygonal faces joined by lateral parallelogram faces
- 65. the infinite set of all points