Geometry Crossword Hummel

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Across
  1. 4. Lying on the same straight line.
  2. 6. A flat surface that can extend forever in length and width but has no thickness.
  3. 7. A closed plane figure bounded by at least three line segments.
  4. 8. Often referred to as the right cone. A cone is a solid formed by rotating a right triangle around one of its legs.
  5. 11. A straight line or a plane that divides a line, a plane, an angle, or a shape into two equal parts.
  6. 12. A general conclusion proposed to be proved upon the basis of certain given hypotheses or assumptions
  7. 13. The path of a point moving in opposite directions infinitely. A line has neither width nor thickness but length. It is the shortest distance between two points.
  8. 14. A statement accepted as true without proof.
  9. 15. The set of all the elements within a particular universal set that are not elements of the given set.
  10. 16. Part of a line between two points called endpoints.
  11. 19. A convex curve is a set of points any of whose chords do not include any point that is not in the set.
  12. 20. Two angles that share the same vertex and have one side in common between them.
  13. 23. The boundary line of a circle or the length of such a boundary line.
  14. 24. The length of the boundary around a shape or a figure.
  15. 26. Two lines that intersect at right angles.
  16. 29. Points or lines that all lie in the same plane.
  17. 30. The side opposite the right angle in a right triangle.
  18. 32. The side facing a given angle in a triangle. It is the side not forming one arm of the angle.
  19. 36. term A linear system of equations that has fewer equations than variables.
  20. 37. A planar surface of a solid figure.
  21. 38. A pair of adjacent angles formed by intersecting lines.
  22. 41. Two or more straight coplanar lines that do not intersect.
  23. 42. Also called half-line. It is a straight line that extends from a point.
  24. 43. A point at which the two rays of an angle meet or the intersection point of two sides of a plane figure. A point shared by three or more sides of a solid figure.
  25. 44. A closed solid bounded by a surface on which all points are equidistant from a central point called the center.
Down
  1. 1. They are straight lines that are neither parallel, nor intersecting.
  2. 2. Two angles that add up to 180°.
  3. 3. The point on a line segment that divides the given line segment into two congruent parts.
  4. 4. A can-shaped solid figure.
  5. 5. It is the angle between two perpendicular lines such as the corner of a square or two perpendicular planes such as the wall and the ground.
  6. 9. The pair of angles opposite each other formed by two intersecting lines.
  7. 10. A unit of measure used to measure the magnitude of an angle, equal in magnitude to 1/360 of a complete revolution.
  8. 17. A line segment where two faces of a polyhedron meet.
  9. 18. When at least one of the interior angles of a polygon is greater than 180°
  10. 21. The surface included within a closed figure, measured by the number of square units needed to cover the surface.
  11. 22. An angle that is between 90° and 180°.
  12. 23. An additional geometric figure that is constructed to assist in solving a problem or producing a proof.
  13. 25. A line segment that passes through the center of a circle and has its two endpoints on the circle. A line segment that passes through the center of a sphere and has its two endpoints on the surface of the sphere.
  14. 27. A polyhedron whose one face is a polygon and the other faces are triangles with one common vertex.
  15. 28. Planar figures or solid shapes that have the same shape and size.
  16. 31. A solid bounded by at least four polygonal faces.
  17. 33. Two things that are located or facing directly across.
  18. 34. An angle with a measure between 0° and 90°.
  19. 35. A space figure with two parallel polygonal bases that are the same shape and the same size.
  20. 39. The distance from the center of a circle to any point on its circumference.
  21. 40. The two rays are called the sides of the angle and the initial point is called the vertex of the angle.
  22. 41. A geometric object that has no dimension and is used to indicate a location.
  23. 45. A set of logical arguments used to deduce or prove a mathematical theorem from a set of axioms.