CRACK DAT PAT #2 test question

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Faux

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PAT test #2
Question 89

So I'm looking at the model and how they unfold it. My question is, who says you have to turn the shape upside down for this particular one and unfold it? Why can't you unfold the choices as is(without changing the position)? For example, if you unfold choice D with the shape as is, it matches the picture, no?
 
PAT test #2
Question 89

So I'm looking at the model and how they unfold it. My question is, who says you have to turn the shape upside down for this particular one and unfold it? Why can't you unfold the choices as is(without changing the position)? For example, if you unfold choice D with the shape as is, it matches the picture, no?
You don't have to turn it upside down to match it.

If you unfold D as it is, you'll notice that the colored shapes will actually face the back of the screen. ie. you are not able to see it, everything is flipped thus it does not match the picture.

IF you fold the shape and use the top triangle as a fulcrum/reference point, we see that the adjacent triangle on the right will fold and match A perfectly.

Hope this helps.
 
How do I know everything is flipped though?
Imagine D (the triangle) is sitting on the table in front of you. (3D)
IF you unfold onto the table, you'll see that it is flipped! I recommend not trying to see the whole thing, just focus on two adjacent triangles, so for example, if I focus on the right sides of D(the visible side in the answer) and I unfold it.
Okay
Then I flip it around, THEN i see that the Thin bar line on the triangle will actually be on the RIGHT side of the "almost fully shaded bigger rectangle" instead of it being on the LEFT side of it like in the original pattern.

Another way, is to look at the original picture.
we see that D, the shaded bar of the small triangle will be on the floor.
So we turn the original compound 180 degrees so that the smaller triangles match.
Instantly, we see that D is wrong since the Large shaded side is on the left (in the original compound turned 180), whereas in the answer D, it is on the right side.

I recommend actually cutting out shapes if you still don't get it!
Let me know if this clears things up.

Also remember, you ALWAYS have to fold the pattern into the screen, meaning the edges fold in to the screen, since we need the patterns to be on the outside.
 
Imagine D (the triangle) is sitting on the table in front of you. (3D)
IF you unfold onto the table, you'll see that it is flipped! I recommend not trying to see the whole thing, just focus on two adjacent triangles, so for example, if I focus on the right sides of D(the visible side in the answer) and I unfold it.
Okay
Then I flip it around, THEN i see that the Thin bar line on the triangle will actually be on the RIGHT side of the "almost fully shaded bigger rectangle" instead of it being on the LEFT side of it like in the original pattern.

Another way, is to look at the original picture.
we see that D, the shaded bar of the small triangle will be on the floor.
So we turn the original compound 180 degrees so that the smaller triangles match.
Instantly, we see that D is wrong since the Large shaded side is on the left (in the original compound turned 180), whereas in the answer D, it is on the right side.

I recommend actually cutting out shapes if you still don't get it!
Let me know if this clears things up.

Also remember, you ALWAYS have to fold the pattern into the screen, meaning the edges fold in to the screen, since we need the patterns to be on the outside.



Bless you 🙂
 
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