Across
- 4. A part of a line that starts at an initial point and extends infinitely in one direction.
- 6. A polygon with 15 sides and 15 vertices.
- 10. A full rotation of 360 degrees
- 11. An angle that measures exactly 180 degrees.
- 13. A polygon where all interior angles are less than 180 degrees.
- 15. A polygon with 7 sides and 7 vertices.
- 16. A polygon with 20 sides and 20 vertices.
- 17. Having the same shape and size.
- 22. A polygon with 26 sides and 26 vertices.
- 24. The starting point of a ray or vector.
- 26. A polygon with 3 sides and 3 vertices.
- 28. Two adjacent angles whose non-common sides form a straight line
- 30. A part of a line defined by two endpoints
- 36. Points that lie on the same straight line.
- 39. Two lines or line segments that never intersect and are always the same distance apart.
- 40. The study of figures on a plane or on a space
- 42. an angle with a measure of 90 degrees
- 45. A polygon with at least one interior angle greater than 180 degrees
- 46. A polygon with 10 sides and 10 vertices.
- 48. A polygon where all sides are equal in length.
- 49. Two angles sharing a common side and vertex but no interior points in common
- 51. A theorem that states that the segment that joins the midpoints of two sides of a triangle is parallel to the third side and half as long
- 52. A polygon with 8 sides and 8 vertices.
- 55. A polygon where all interior angles are equal in measure.
- 56. The endpoint of a vector or segment, indicating its final position.
- 59. Two nonadjacent angles formed by two intersecting lines
- 63. A flat, two-dimensional surface that extends infinitely in all directions and has no thickness.
- 65. A polygon with 23 sides and 23 vertices.
- 68. A triangle where no sides are congruent
- 69. An angle that measures greater than 180 degrees and less than 360 degrees.
- 70. Angles formed by a base and the legs
- 71. A polygon with 25 sides and 25 vertices.
- 75. a quadrilateral with exactly one pair of opposite sides parallel
- 77. A polygon with 11 sides and 11 vertices.
- 79. An angle that measures greater than 90 degrees and less than 180 degrees.
- 80. A Statement that needs to be proven before being accepted
- 81. A polygon with 5 sides and 5 vertices.
- 85. A polygon with 16 sides and 16 vertices.
- 87. A polygon with 30 sides and 30 vertices.
- 89. elements that are adjacent or next to each other in sequence.
- 90. A line, ray, or segment that divides another segment into two equal parts.
- 92. A unit of measurement for angles
- 93. How many sides and vertices does an icosagon have?
- 94. A polygon with 18 sides and 18 vertices.
- 95. Two angles that share a common vertex and a common side but do not overlap.
Down
- 1. a closed plane figure consisting of four line segments or sides
- 2. A polygon with 29 sides and 29 vertices.
- 3. Indicates a location in space that has no size, width, length, or depth; it is represented by a dot.
- 5. An angle that measures greater than 0 degrees and less than 90 degrees.
- 6. Two lines, line segments, or rays that intersect to form a right angle.
- 7. A polygon with 14 sides and 14 vertices.
- 8. can be defined using undefined terms
- 9. The point that divides a line segment into two equal parts.
- 12. A polygon with 24 sides and 24 vertices.
- 14. Do not require a definition but can be described
- 18. A polygon with 19 sides and 19 vertices.
- 19. A line or ray that divides an angle into two equal parts.
- 20. A figure formed by two rays (or line segments) sharing a common endpoint called the vertex.
- 21. A theorem that states that the sum of the interior angle measures of a convex polygon with n sides is (n-2)180 degrees
- 23. Determines the direction of the angle
- 25. A polygon with 17 sides and 17 vertices.
- 27. Two angles whose sum is 180 degrees
- 29. a quadrilateral with two pairs of opposite sides that are parallel
- 31. A polygon that is not equiangular or equilateral.
- 32. Vertices or sides of a polygon that are not adjacent.
- 33. An infinite set of points extending in both directions without end, having no thickness or width.
- 34. An angle that measures exactly 0 degrees.
- 35. A closed figure formed by three or more line segments, called sides, that intersect only at their endpoints.
- 37. A theorem that states that the sum of the exterior angle measures, one angle at each vertex, of a convex polyygon is 360 degrees
- 38. A polygon with 27 sides and 27 vertices.
- 41. Angles that are multiples of 90 degrees where the terminal side lies along the axes
- 43. A triangle where at least two sides are congruent
- 44. a trapezoid with congruent legs
- 47. A quadrilateral with two pairs of congruent and adjacent sides
- 50. Two angles whose sum is 90 degrees
- 53. The line segments that form the boundary of a polygon.
- 54. A line segment joining two nonconsecutive vertices of a polygon
- 57. A shape, line, or collection of points that represents a geometric object.
- 58. A polygon with 13 sides and 13 vertices.
- 60. A theorem that states that the sum of the interior angle measures of a triangle is 180 degrees
- 61. Points that lie on the same plane.
- 62. A polygon with 9 sides and 9 vertices.
- 64. The point where two line segments, rays, or edges meet to form an angle or corner.
- 66. A polygon that is both equiangular and equilateral.
- 67. a parallelogram with four right angles
- 68. a rectangle with all four sides congruent
- 72. A point at which a line segment or ray terminates.
- 73. The region outside a geometric figure or an angle formed by extending one side of a polygon.
- 74. A polygon with 6 sides and 6 vertices.
- 76. A polygon with 28 sides and 28 vertices.
- 78. The region inside a geometric figure or the space within the boundaries of a polygon or angle.
- 82. a parallelogram with all four sides congruent
- 83. A theorem that states that the median of a trapezoid is parallel to each base and its length is one-half the sum of the lengths and bases
- 84. A point where a line segment or ray begins or ends.
- 86. A polygon with 12 sides and 12 vertices.
- 88. A regular polygon is always ______
- 91. How many sides and vertices does an undecagon have?