8pi or 15pi? vote now!

<p>I didnt say anything about a second largest circle, enlightened1 said that.</p>

<p>8 pi!</p>

<p>This one caused a big riff in my Calc class too. But I’m sticking to the answer I put, because I interpreted the question to be that you exclude the largest and smallest triangle.</p>

<p>okay i will never understand 8pi reasoning.</p>

<p>u dont need to because obviously it’s wrong.</p>

<p>wow. i think this is one of the biggest controversies of all time on the SAT!</p>

<p>And I don’t get how people are not understanding the different reasonings.</p>

<p>If the wording is “within the larger circle,” then that counts the area of the larger circle. So the total is 15pi.</p>

<p>If the wording is “between the area of the outer circle and inner circle,” then that doesn’t count the large circle’s area, and it’s 8pi.</p>

<p>The discrepancy lies in whether or not you count the big circles area.</p>

<p>For the people who are saying that the question asked for the area of the circle inside the largest but outside the smallest…YOU ARE WRONG. I distinctly remember the word REGION - as in the area of the region which lies inside the largest circle and inside the smallest.
Sorry.</p>

<p>I had 8pi at first for a couple seconds, til I reread the question. I still think that it is 15pi. Too bad nobody has the exact question so we can scrutinize. Hopefully all you 8pi fools will help the curve so I can get 1x 800 M!</p>

<p>Ok. I’m going to attempt to disprove 8pi using logic. First, let’s consider the main argument of the 8piers. They seem to be claiming that, the way the question was worded, you were not supposed to count the area of the outer circle. Thus they arrived at the answer would be 16pi-7pi (the area of the little band exclusive to the outer circle)-1pi (the area of the smallest circle) giving you 8pi. Unfortunately this idea falls flat on it’s face when we take into consideration the fact that the area of the outer circle is 16pi. It doesn’t matter one iota how many circles are within the larger circle, the area of the larger circle itself remains the same (it just encompasses all the other circles areas as well). So the 8piers are claiming the area of the larger circle wasn’t supposed to be included, yet they only see fit to get rid of the area exclusive to larger circle. Where is the logic in this? Was the question worded “What is the area outside the smallest circle, not including the area exclusive to larger circle”? I can promise you it wasn’t. If it was worded something like “What is the area between the area of the outer circle and the inner circle” as Aim suggested, the answer would still be 15pi. Why? Because you cannot logically exclude the area exclusive to the larger circle, while continuing to include the area not exclusive to larger circle. The area of the largest circle is 16pi, not 7pi. You would either be forced to subtract 16pi-16pi= 0 (which was not a choice) or you’d have to concede that the area was 15pi. Nothing else can logically follow. Now, if the question was worded “What is the area between the area exclusive to the larger circle, and the area of the smallest circle” then you could arrive at 8pi. Unfortunately this is not how the question was worded either. I’m positive the word exclusive was not mentioned anywhere. Hopefully people can understand the logic in this post and this thread can end. Either way, I’m through with it.</p>

<p>I remember the the exact wording of the question it asked " what is the area of the reigons inside the largest circle." I put 15pi, reread it , and switched to 8pi. I can see arguments for both sides based upon your interpretations of “inside”.This question is doubly unfortunate for me because it will mean the difference between 700M and sub 700M. What makes me really mad is that my score will not entirely be based upon mathematical aptitude, but rather partially on mathematical apptitude and partially upon a subjective interpretation of the word inside. God I hate college board.</p>

<p>It’d be funny if Collegeboard just declared this question as crap and omit it. They’ve done it on the PSAT before…</p>

<p>isn’t the definition of area pretty much 'the measure of the region inside the figure?"</p>

<p>the circle is the set of points, and the region inside is the area.</p>

<p>the answer is 15pi.</p>

<p>Hell Yes! :)</p>

<p>if collegeboard did throw it out how would the curve go? it’d be definitley
800
800
7–
right?</p>

<p>If they threw it out, that would mean that all those people who got it wrong would not lose those 1.25 points, thus making the curve worse. So, if there is doubt now as to whether the curve will be 800 800 7–, throwing it out, IMO, would surely make it 800 790.</p>

<p>I don’t think they use the current test takers as the ones who determine the curve, they determine how hard the test is based on studies that collegeboard does separate from the real test takers.</p>

<p>I read that from some board posters on this site a while ago, one of them was asking if what would happen to the curve if we all put all As as our answers on the test, and I think another person said it doesn’t matter what everyrone else does, your score is based on the points you earn and they’re put on a curve that collegeboard made seperatley.</p>

<p>(the guy was asking if we’d all get 800s, because if we all put all As and got a lot wrong it would make it look like the test had been really hard, and then college board would think that the people who got the most right should get an 800 because it would seem like the people who got those by-chance ones right got the only ones they could possibly get right right because a very extreme majority couldn’t get the rest right, and technically, everyone would have gotten the max/most questions right. But really, that doesn’t make much sense at all…)</p>

<p>why can’t we just wait till we receive our results? Then we can shoot down all the people who said 8pi</p>

<p>dangit! i didn’t buy a Q&A service. dangit!! i just might have to now…</p>

<p>15 pi. common…</p>

<p>15 pi, obviously. One of my friends put 8pi but was kicking himself because he realized he read it wrong.</p>