Shoelace formula — AMC & AIME Problems
Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses shoelace formula — 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 12
2011 AMC 12A Problem 17 · 2013 AMC 12A Problem 13 · 2016 AMC 12A Problem 15 · 2017 AMC 12B Problem 24 · 2018 AMC 12A Problem 22 · 2019 AMC 12A Problem 5 · 2020 AMC 12A Problem 17 · 2021 AMC 12B Spring Problem 15 · 2021 AMC 12A Fall Problem 21 · 2022 AMC 12B Problem 25 · 2024 AMC 12B Problem 12 · 2024 AMC 12B Problem 15
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