<p>Hey guys im aiming for a 36 on the math portion and i was wondering if you had to memorize any equations..is there a list or something? I ran into a problem that asked for the volume of a cylinder and i didnt know it till i looked it up in the SAT book..</p>
<p>You should memorize basic area and volume formulas. Make sure you memorize the distance and midpoint formulas for plane geometry. Look over trigonometry stuff. Occasionally, they throw in an identity style question, so knowing the basic identities helps.</p>
<p>which basic identities?</p>
<p>Sbanzar: HEY!! I ran into that same problem. Were u taking the Princeton Review Practice test?? I saw a cylinder problem and I was like what is the volume-pie rsquared h I think. But ya, know all ur geometry formula and the trig formulas, theres not many trig formulas just like 2 or 3, so concentrate on the geomtry.</p>
<p>haha naw man...i was taking the REAL ACT book test..but yeah ur right its Pie x r^2 x h. Watch that problem come up on the April ACT haha</p>
<p>Those are the trig identities. The only reason I'm say to memorize them is because one of the retired tests I took had two trig identity problems on there. You technically don't have to memorize any of this. You can always find the value by using some angle and then check the answer choices against that to see which one will give you the same answer.</p>