<p>8 pi, it seems like the working to obtain15pi as the answer is a much easier way.</p>
<p>It's 15pi.</p>
<p>Think about it. It's too obvious, yet it's right. And that's the trap, and why it's near the end. The answer is so plain that you have people doubt themselves and work it out to be 8pi. But it's 15pi.</p>
<p>You take the area of the big circle (16pi) and subtract the area of the small circle (1pi). Since the other circles are ALL WITHIN the larger circle, you don't add them to the 16pi. No matter how many circles are inside it, the area within is still 16pi. The other circles were a DISTRACTION to MESS YOU UP.</p>
<p>It's kind of hard to post the question because there was a picture with it.</p>
<p>By the way, i said 15 pi.</p>
<p>8pi....+7pi=15pi! tricked you, didn't i.</p>
<p>15pi!!!!!!!!</p>
<p>i doubt its even questionable anymore...most definitely 15pi.
i don't even understand how one can even derive 8pi from the problem</p>
<p>15pi has my vote</p>
<p>The SAT puts questions at the end of passages that require more than a single, simple calculation. They don't put questions that look hard but are really easy; to do so would defeat the purpose of putting questions in order of difficulty. Sorry guys and gals, but it was 8 pi.</p>
<p>It was an early question so they were not trying to trick us..15 PI</p>
<p>I'm with netshark.. I gotta stand up for what I believe in. And that's 8pi!</p>
<p>But it's futile to argue about it - I'm just going to wait until Oct 22. If we signed up for the Question and Answer service, when do we get that?</p>
<p>I can't say for sure, I'll need to see the problem again. But I got 8pi during the test, and I was pretty confident about it. Seemed very easy, and yet not TOO easy.</p>
<p>Can anyone draw a picture?</p>
<p>I have a few friends who scored 700+ on previous math sections (one who scored 800) and they all put 15pi.</p>
<p>
<a href="http://jophelps.port5.com/images/8pi.jpg%5B/img%5D">http://jophelps.port5.com/images/8pi.jpg
</a></p>
<p>It's been a while but this is how I remember it... something looks off though.</p>
<p>15 pi!!! it was obvious, the only trick was that there was distracting information. still waiting to hear a decent explanation for 8 pi, except the one where area inside a circle = 0!</p>
<p>15 pi. The area inside the largest circle and outside the smallest. 16pi - pi = 15 pi. Nothing more to it.</p>
<p>What was the wording, though? Was it, "What is the area of the region between the outside circle and the inner circle?" If so, it would probably be 15pi. I didn't think of a circle being a set of points, not the area inside.</p>
<p>This was question 9 or something, right? So the difficulty argument doesn't hold (number of people and slices of pizza question was right after this).</p>
<p>15 pi here.</p>
<p>Though, my friend put 8 pi.</p>
<p>Vote currently:</p>
<p>38-6</p>
<p>38 for 15 pi
6 for 8 pi</p>
<p>And a few weird votes I didn't count.</p>
<p>How did people got 8pi ? I think they misinterpreted the term "circle", a circle's just a closed curve, the points inside the circle are obviouly not part of it. So if you'd thought a circle included all the inner points, you would have got 8pi and add -1/4 point toward your total raw score.</p>
<p>oh dear god plz be 15...</p>