Featured topic · Trigonometry
Easy
Solving Trig Equations — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
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ACT — April 2025 (US)
ACT — April 2025 (US)
A guide to high-yield math topics worth drilling ahead of tests like the ACT — April 2025 (US) sitting. Use it to find the study topic behind the kinds of questions you miss, and re-drill them.
ACT Math Spring 2025 8 featured topics
Every ACT Math sitting draws on the same published ACT Math skill taxonomy. The featured topics below are high-yield skills from that taxonomy; each links to its study page so you can immediately drill the underlying skill.
Most students who stall on a test do so because of a small handful of weak topics — typically two or three categories. The pattern in your wrong answers is more important than your raw score, so look at which topics trip you up, not just how many you miss.
Featured topics to drill
Featured topic · Coordinate Geometry
Medium
Parallel and Perpendicular Lines — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Featured topic · Trigonometry
Medium
Graphs of Trig Functions — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Featured topic · Intermediate Algebra
Hard
Complex Numbers — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Featured topic · Plane Geometry
Easy
Angle Relationships — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Featured topic · Plane Geometry
Medium
Circles — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Featured topic · Coordinate Geometry
Medium
Graphing Parabolas — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Featured topic · Trigonometry
Hard
Inverse Trig Functions — a high-yield skill for this test. If questions on it trip you up, review the topic page and re-attempt its practice problems.
Next steps
Pick your three weakest topics from the list above and work through their dedicated pages. After you can confidently solve every practice question on each topic page, sit another official practice test and compare your improvement.
Browse the full topic guide index for more test dates, or jump back to the ACT Math overview.