Symmetry — AMC & AIME Problems

Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses symmetry — a problem-solving techniques concept — each with a professionally curated solution, many with a video solution too, from LIVE by Po-Shen Loh. Browse all concepts or the full past-contest archive.

All of these problems are used with official legal permission of the Mathematical Association of America (MAA).

AMC 8

1986 AMC 8 Problem 10 · 1989 AMC 8 Problem 11 · 1990 AMC 8 Problem 3 · 1990 AMC 8 Problem 25 · 1995 AMC 8 Problem 20 · 2001 AMC 8 Problem 23 · 2005 AMC 8 Problem 3 · 2005 AMC 8 Problem 23 · 2009 AMC 8 Problem 20 · 2010 AMC 8 Problem 6 · 2011 AMC 8 Problem 18 · 2016 AMC 8 Problem 21 · 2019 AMC 8 Problem 6 · 2022 AMC 8 Problem 23 · 2022 AMC 8 Problem 25 · 2023 AMC 8 Problem 2 · 2025 AMC 8 Problem 1 · 2025 AMC 8 Problem 25

More problem-solving techniques concepts

bounding to limit casescaseworkextremal argumentinductioninvariantoptimizationpairing and groupingpattern recognitionprocess simulationsmall casessystematic listingwork backwards