<p>Regarding the Math section</p>
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<li><p>I'm doing all the silly things. I understand the concept of the question and how it's done but I keep getting the small things wrong. For example, forgetting to divide by a number, using radical 2 instead of radical 3, etc. There was this one hard question that required you to know the number of sides on a cube, and I used 8 instead of 12. Bam. One point gone. How can I avoid things like these? </p></li>
<li><p>How the hell do you do this?
<a href="http://i48.tinypic.com/2uh4chh.jpg%5B/url%5D">http://i48.tinypic.com/2uh4chh.jpg</a></p></li>
</ol>
<p>I’m taking my 3rd and final SAT in 8 days. So there’s that.</p>
<p>Look at the right triangle. It’s height is the geometric mean of the two given segments. In other words, 2/x=x/18 and then you can solve for height, get the area of the triangle and then double it.</p>
<p>Although that relation is often taught in high school geometry, it is somewhat obscure and I have never seen it tested on the SAT. Where is this question from? If it is not college board, you may want to turn your attention to more authentic practice material especially if time is running short.</p>
<p>It’s from Dr John Chung’s Math SAT</p>
<p>This might not be what you want to hear, but the only thing you can do to avoid silly mistakes is to practice, practice, practice. And then practice even more. </p>
<p>And be extra careful, check your answers, etc. </p>
<p>Good luck!</p>
