Question

The image below shows the developed surface of a cube. Which of the options will NOT open up as the shown image?

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is B

The problem involves determining which cube net does not match the provided developed surface of a cube. A cube net is a two-dimensional shape that can be folded to form a cube. The standard cube consists of six faces, each connected to adjacent faces in various formations. The given developed surface of a cube forms a specific sequence of faces when unfolded.

• Observation of the unfolded cube net in the image: The central face typically acts as a base, with other adjacent and opposite faces either beside or connected directly.
• In each provided option, check the continuity and symmetry. A valid net allows all six faces to fold into a cube with no overlaps and all adjacent faces connected directly.

Options to Analyze	Result
Option 1	The arrangement allows a continuous fold without overlaps, matching the cube's face structure.
Option 2	This arrangement fails as a cube net because it would create overlaps or inconsistent face connectivity.
Option 3	This configuration folds into a cube correctly with a base and adjacent faces properly arranged.
Option 4	This setup fulfills a proper cube structure through valid face positioning and adjacency.

Considering the cube's structural integrity and folding guidelines, Option 2 is identified as the arrangement that will not open up as the developed surface of a cube depicted in the image. The irregularity and disjoint positioning make it incapable of correctly forming a cube.