Dr. A- ACT Prep Instructor

Right triangles Memorize these. They come up a lot. • 3, 4, 5 • 6, 8, 10 • 5, 12, 13 • 8, 15, 17 If you see these or multiples, it is a right triangle. No work needed. Special right triangles These are guaranteed points if you know them. • 45°–45°–90° Sides: x, x, x√2 • 30°–60°–90° Sides: x, x√3, 2x #ACTMath #geometry #ACTPrep #TestTakingTips #ACTTips