pat question

[predentgal]

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Hey guys, I came across this patttern folding question and choices A and B look similar to me. I chose B as being the answer, but the correct answer is A. I'm not sure on what the difference is between choices A and B. Can somone explain?

http://img444.imageshack.us/img444/1053/27309953.png

Thankss!!

 

[vr4rider]

A and B are similar, however:

B is incorrect because the reason is that: the vertical lines of the cube in B is perpendicular to the ground. Another way to look at this same picture is: the vertical lines of the cube is perpendicular to the longest horizontal piece (the bottom piece) that would be the ground/base. Another way to look at this same picture is: the horizontal lines of the cube are parallel with the ground.

Look at the unfolded piece: you will notice the vertical lines of what would make up the cube is not perpendicular to the longest horizonal line (the ground/base). Another way to examine this is: you will notice the horizontal lines that would make up the cube is not parallel to the longest horizontal line (ground/base).

Therefore, B is eliminated and you are left with A as the right answer.

Hope this helps.

 

[UCSD6]

look at the outline of the tirangle looking side with a flat top. You'll notice that that flat small portion where the small cube attaches is slanted, whereas in B it is a straight line that's parallel to the base of the figure.

 

[predentgal]

ooo I thought I saw a slant while I was taking the test but I figured my eyes were playing tricks on me lol.. okk i get it now.. thanks😉)