Pattern folding question

[FeralisExtremum]

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Was practicing pattern folding and came across this:

The problem I'm having is that the face in B (that I've marked with blue asterisks) doesn't actually appear anywhere in the shapes on the left. How did they reach this answer?

Side note to anyone using Qvault: PAT #6 has errors with the scoring, a bunch of answers was marked as incorrect showed the correct answer as the one I picked...wouldn't expect it to get fixed anytime soon since Qvault's customer support is non-existent.

 

[KyoPhan]

On the left section of the image, it should be the very bottom piece(Large upside down triangular head piece). It's unclear in the picture, so I'm not sure if that is a line or not, but there should be a solid line there so that you have a rectangular piece attached to the triangular head.

 

[FeralisExtremum]

On the left section of the image, it should be the very bottom piece(Large upside down triangular head piece). It's unclear in the picture, so I'm not sure if that is a line or not, but there should be a solid line there so that you have a rectangular piece attached to the triangular head.

Yea now that you mention it there is a super faint grey line there. I guess it was supposed to be a solid, then it works.

 

[crossbonnez]

Hi, I know I am late but I got this one correct. Lets look at it from the perspective of the shaded triangular object on the top.

A) This can be eliminated right away, about that object there should be a rectangular top. Instead it's triangular.
C) If you compare the triangular shape to the tall rectangular shape on it's left you see, that both are of the same width. This means that when the pattern is folded the slant of the triangular object will run all across the width of the rectangular object (which is now the base). It the slant thing won't be smaller than the base. So you get rid of C.
D) If you look right below the triangular slant, it should be bent inwards. Shouldn't continue as it if were a box. That eliminates D.

So you're left with B

Hope this helps