Based on the analysis of the 2D net and the four 3D cube options, here is the solution:
The task is to identify which of the four 3D cubes can be formed by folding the given 2D net. The key is to check the adjacency and orientation of the faces, especially the unique face with the diagonal white stripe.
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Analysis of the 2D Net:
- The net is a standard cross shape with six squares.
- It contains three solid blue faces, two white faces, and one blue face with a diagonal white stripe.
- The face with the diagonal stripe is in the center of the cross. Its adjacent faces are: a white face above it, a white face to its left, a solid blue face below it, and a solid blue face to its right.
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Evaluation of the Options:
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Option 1 (Leftmost): Shows a white front face, a solid blue top face, and a solid blue right face. It does not show the diagonal stripe face at all. Since the net has this unique face, any correct 3D representation must include it. Therefore, this option is
incorrect.
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Option 2: Shows a solid blue front face and a white right face. Like the first option, it completely omits the diagonal stripe face. Therefore, this option is also
incorrect.
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Option 3: Shows the diagonal stripe on the front face, a solid blue face on top, and a solid blue face on the right. This configuration matches the net perfectly: the diagonal face is adjacent to two solid blue faces, which corresponds to the blue face below and the blue face to the right of the diagonal face in the net. The white faces are simply not visible from this viewing angle, which is expected. Therefore, this option is
correct.
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Option 4 (Rightmost): The image provided for this option is incomplete and does not clearly show the cube's faces. However, based on the previous analysis, Option 3 is already confirmed as correct.
Conclusion:
The only 3D cube that correctly represents the folded 2D net is the
third option (the one showing the diagonal stripe on the front face).
Parent Tip: Review the logic above to help your child master the concept of spatial reasoning worksheet.