Regular polygon — AMC & AIME Problems
Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses regular polygon — a geometry 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 10
2001 AMC 10 Problem 20 · 2002 AMC 10A Problem 19 · 2002 AMC 10B Problem 17 · 2003 AMC 10B Problem 23 · 2009 AMC 10B Problem 24 · 2010 AMC 10B Problem 20 · 2011 AMC 10B Problem 16 · 2012 AMC 10A Problem 18 · 2013 AMC 10A Problem 25 · 2013 AMC 10B Problem 7 · 2013 AMC 10B Problem 12 · 2013 AMC 10B Problem 15 · 2014 AMC 10A Problem 12 · 2014 AMC 10B Problem 13 · 2015 AMC 10B Problem 22 · 2016 AMC 10B Problem 23 · 2018 AMC 10B Problem 24 · 2020 AMC 10B Problem 14 · 2021 AMC 10A Fall Problem 17 · 2021 AMC 10B Fall Problem 11 · 2021 AMC 10B Fall Problem 21 · 2022 AMC 10A Problem 21 · 2023 AMC 10A Problem 24 · 2023 AMC 10B Problem 25 · 2025 AMC 10B Problem 12
AMC 12
1999 AMC 12 Problem 26 · 2001 AMC 12 Problem 14 · 2003 AMC 12B Problem 15 · 2006 AMC 12A Problem 22 · 2006 AMC 12B Problem 16 · 2009 AMC 12A Problem 19 · 2009 AMC 12A Problem 22 · 2011 AMC 12B Problem 12 · 2012 AMC 12A Problem 14 · 2013 AMC 12A Problem 24 · 2015 AMC 12B Problem 7 · 2018 AMC 12B Problem 16 · 2018 AMC 12B Problem 20 · 2020 AMC 12A Problem 14 · 2020 AMC 12B Problem 11 · 2021 AMC 12B Fall Problem 19 · 2022 AMC 12B Problem 10 · 2022 AMC 12B Problem 25 · 2023 AMC 12B Problem 25 · 2024 AMC 12B Problem 23 · 2025 AMC 12A Problem 24
AIME
1997 AIME Problem 6 · 1998 AIME Problem 10 · 2002 AIME I Problem 5 · 2002 AIME II Problem 4 · 2004 AIME I Problem 8 · 2005 AIME I Problem 1 · 2010 AIME II Problem 9 · 2011 AIME I Problem 14 · 2013 AIME I Problem 12 · 2014 AIME I Problem 5 · 2016 AIME I Problem 4 · 2017 AIME II Problem 13 · 2019 AIME II Problem 13 · 2024 AIME II Problem 15 · 2025 AIME II Problem 11