<p>There’s actually not many topics that related between Algebra II and Geometry. I took Algebra II this year, and forgot almost everything that I learned in geometry. I only remember a few times in class when the teacher would say “remember you learned this in geometry…?” It didn’t happen a lot, so I think you’ll be fine. If you’re planning to become an astronomer or computer engineer, they’re going to teach you what you need to know in college anyway. I doubt they’ll expect you to remember math you learned in high school.</p>