Math Answers!!!

<p>phinxae,
I get it now, I didn't take the exam (my D did) and didn't say "how much MORE" surface area, just what is the surface area of the 8 cubes,
so I thought the answer was 12.</p>

<p>Was The Section With The Pail Question Experimental...it Had To Be</p>

<p>No it asked for the difference between the two. It was 6.</p>

<p>Yeah, I hate those kinds of careless errors.</p>

<p>heellpppp! im trying to sign up for the may sat in nyc but like am i too late....?? it says the only test center available one is on june third but i really ewant to takee it iin may? helppp.. because thee deadlinee isn't over yet so im so confused</p>

<p>You Can Go Stand By</p>

<p>Crazyla:
Another approach to the cube problem (borrowing cheerfully from phinxae's excellent explanation above) ...</p>

<p>Each mini-cube comes from a corner of the original cube. At each corner, the associated mini-cube has 3 faces exposed, and the other 3 faces 'hidden' i.e. within the original cube. Since every face of a mini-cube will have equal area, area of 3 hidden faces = area of 3 exposed faces, for each mini-cube; therefore, area of <em>all</em> hidden faces of mini-cubes = area of <em>all</em> exposed faces of mini-cubes = surface area of original cube = 6.</p>

<p>Area of all hidden faces of mini-cubes is the 'new' exposed area, so 6 is the answer.</p>

<p>Does everyone realize that if you go to CB's website, it will tell you which section was experimental?</p>

<p>I went to the CB website. What is "equating"? Does that mean that some people had an extra section and some people didn't? I thought we thought there was an experimental math and an experimental reading.</p>

<p>^equating means experimental.</p>