How to improve ACT geometry?

<p>I've read guides, watched tutorial videos, read my textbook's geometry section, and made notes, but I still don't understand geometry. I've progressed from a 28 to a 29 in the last few weeks (this is the second practice test), but I'd really like to reach 31 or 32 before April.</p>

<p>Does anyone have any advice for geometry, specifically for sine and cos equations (not triangles, but on their own), triangle ratios, and complex circle questions?
(E.g. questions 30, 44, 54 and 56 here: <a href="http://www.unioto.k12.oh.us/ACTpreparing.pdf%5B/url%5D"&gt;http://www.unioto.k12.oh.us/ACTpreparing.pdf&lt;/a> )</p>

<p>Any recommendations for ACT geometry websites (not just the basics, but all the complex questions too) would be greatly appreciated. :)</p>