GEOMETRY: Three-Dimensional Geometry

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Across
  1. 2. A perfectly round three-dimensional object in which all points on the surface are equidistant from the center.
  2. 4. A flat surface of a polyhedron.
  3. 6. A polyhedron with two congruent and parallel bases connected by rectangular or parallelogram faces.
  4. 8. Two-dimensional representations of a three-dimensional object that can be cut and folded to form the shape.
  5. 10. Half of a sphere, formed by a plane that passes through the center of the sphere.
  6. 12. A three-dimensional shape with two congruent circular bases and a curved surface connecting the bases.
  7. 13. The amount of space occupied by a three-dimensional object.
  8. 14. A line segment where two faces of a polyhedron meet.
  9. 15. A solid with flat faces, straight edges, and vertices.
Down
  1. 1. ____ area: The total area of all the faces or surfaces of a three-dimensional object.
  2. 3. A polyhedron with a polygonal base and triangular faces that converge to a single point called the apex.
  3. 5. A three-dimensional shape with a circular base and a curved surface that converges to a single point called the apex.
  4. 7. cross-_____: The shape formed by slicing a three-dimensional object by a plane.
  5. 9. A three-dimensional object with length, width, and height. Also known as a 3D shape or figure.
  6. 11. A point where three or more edges of a polyhedron meet.