Pattern folding - Achiever

[tjung789]

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I do not get this question. Can someone please tell me why the answer is B and not C?

Also, is this question what people refer to has half-folds, and are they common on the DAT?

You guys have any strategies for pattern folding?

 

[KyoPhan]

I think C can be eliminated simply because the diagonal lines should be going in the same direction, rather than towards each other?


Focus on those 5 pieces. As it stand in the unfolded image, they all have the diagonals in the same direction. When these 4 pieces folds down on the pentagon, shouldn't all of the diagonal lines be in the same direction?

 

[themrn]

B?

 

[tjung789]

B?

The answer is B, but why?

 

[Eri3]

Do you have a printer ? Screen shot it and print it out. Then cut it out and fold it to see how it folds up in 3-D - that may clear up any confusion.

 

[Eri3]

I think C can be eliminated simply because the diagonal lines should be going in the same direction, rather than towards each other?


Focus on those 5 pieces. As it stand in the unfolded image, they all have the diagonals in the same direction. When these 4 pieces folds down on the pentagon, shouldn't all of the diagonal lines be in the same direction?

I didn't even notice that part 😱

Another way to look at this:
Start at the white rectangle and number from left to right 1(white rectangle) 2(white triangle) 3(black triangle) 4(black triangle) and 5 ( white triangle)

So the white triangle from to the left of the white rectangle must be inserted between 4 and 5 which creates the half black half white rectangle.

The next black triangle on the left side of the rectangle must be inserted between 3 and 4, which creates the double black rectangle.

I hope that makes sense