geometry
Angle bisector — AMC & AIME Problems
31 problems
Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses Angle bisector — 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.
LIVE focuses on challenge. As a social enterprise, we also explain standard school concepts one at a time, for free, on our sister site Expii. For this idea: Angle Bisectors, Angle Bisector Theorem, Points on an Angle Bisector.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
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These problems’ difficulty ratings come from real solve attempts on our platform. Tap a band or a contest to filter the list below, and tap a selected band again to include all difficulties. See the full difficulty guide.
AMC 12
- 1951 AMC 12 Problem 46
- 1954 AMC 12 Problem 37
- 1954 AMC 12 Problem 46
- 1957 AMC 12 Problem 1
- 1962 AMC 12 Problem 7
- 1965 AMC 12 Problem 4
- 1968 AMC 12 Problem 18
- 1970 AMC 12 Problem 30
- 1981 AMC 12 Problem 19
- 1984 AMC 12 Problem 18
- 1986 AMC 12 Problem 3
- 1993 AMC 12 Problem 23
- 2008 AMC 12B Problem 25
- 2013 AMC 12B Problem 24
- 2021 AMC 12A Fall Problem 13
- 2021 AMC 12B Fall Problem 24
- 2025 AMC 12A Problem 16
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- Ptolemy’s Theorem
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- Pythagorean Theorem
- Pythagorean Triple
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- Transformation
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